Physical World Questions

We provide physical world practice exercises, instructions, and a learning material that allows learners to study outside of the classroom. We focus on physical world skills mastery so, below you will get all questions that are also asking in the competition exam beside that classroom.

Physical World Questions

List of physical world Questions

Question NoQuestionsClass
1It is often said that the world is
witnessing now a second industrial revolution, which will transform the
society as radically as did the first. List some key contemporary areas of science and technology, which are responsible for this revolution.
11
2The man who has won Nobel Prize twice
in physics is
A. Einstein
B. Bardeen
c. Heisenberg
D. Faraday
11
3Which one of the following correctly describes AGNI?
A. A long range gun
B. A long range missile
c. A versatile tank
D. A fighter plane
11
4Stars appears to move from east to
west because
A. all stars move from east to west
B. the earth rotates from west to east
c. the earth rotates from east to west
D. the background of the stars moves from west to east
11
5Which of the following books is not written by Werner Heisenberg?
A. Breakthrough
B. The Physical Principles of the quantum theory
c. Physics and Philosophy
D. Physics and Beyond
11
6Who was the first pre-Socratic philosopher to suggest that matter could neither be created nor destroyed?
A. kepler
B. Newton
c. parmenides
D. None of these
11
7The type of resource obtained from Biosphere that contains life is.
A . Abiotic resource
B. Human made resource
c. Nonrenewable resource
D. Biotic resource
11
8No physicist has ever “seen” an electron Yet, all physicists believe in the existence of electrons. An intelligent but superstitious man advances this analogy to argue that ‘ghosts’ exist even though no one has ‘seen’ one. How will you refute his argument?11
9Though the statement quoted above may be disputed, most physicists do have a feeling that the great laws of physics are at once simple and beautiful. Some of the
notable physicists, besides Dirac, who have articulated this feeling, are:
Einstein, Bohr, Heisenberg, Chandrasekhar and Feynman. You are urged to make special efforts to
get access to the general books and writings by these and other great masters of physics. (See the Bibliography at the end of this book.) Their writings are truly inspiring!
11
10He was a professor of mathematics at St. Petersburg University, Prof. of anatomy and physics at the University of Groningen, and prof. of physics, anatomy and botany at the University of Basle. But he is most famous for what is
known as ‘Bernouilli’s theorem’. Name
the outstanding mathematician- of a
well-known Swiss family.
A. Johann Bernouill
B. Jacob Bernouilli
c. Danial Bernouill
D. None of these
11
11Which Indian scientist is known for his
crucial role in the development of Indias missile and nuclear weapons
programmes?
A. A. P. J. Abdul Kalam
B. c. v. Raman
c. Jagadish Chandra Bose
D. Har Gobind Khorana
11
12State whether given statement is True or False.

Aryabhata is the first Indian satellite.
A. True
B. False

11
13Einstein was awarded the Nobel Prize
for his work on
A. Photoelectric effect
B. Special theory of relativity
c. Brownian motion
D. General theory of relativity
E. Quantum theory
11
14Example of Invention in field of communication is
A. Telephone
B. Fax
c. Internet
D. All of these
11
15What is the two principal thrust in Physics?
A. Unification and Reduction
B. Unification and Oxidation
c. Magnification and Reduction
D. simplification and Reduction
11
16Electron microscope is based on which scientific principle?
A. Light amplification by stimulated emission of radiation
B. Wave nature of electrons
c. Digital logic
D. Reflection of ultrasonic waves
11
17suggested that the ships should be marked with load lines.
A. Samuel plimsoll
B. Einstein
c. Newton
D. Archimedes
11
18Bose-Einstein condensate is based on
which scientific principle?
A. Magnetic confinement of plasma
B. Trapping and cooling of atoms by laser beams and magnetic fields
C. Wave nature of electrons
D. Motion of charged particles in electromagnetic fields
11
19Marie Curie is credited to the
development of which of the following element?
A. Thorium
B. cesium
c. Radium
D. carbon
11
20Who found Calcutta Medical College?
A. Lord William Bentinck
B. Warren Hastings
C. Ram Mohan Roy
D. Lord George Bentinck
11
21“It is more important to have beauty in the equations of physics than to have them agree with experiments.” The great British physicist P. A. M. Dirac held this view.Criticize this statement.
Look out for some other equations and results, which strike you beautiful
11
22Q Type your question
user. Given below are some of the
applications of science. Formulate your views on whether the particular application is good, bad or something that cannot be so clearly categorised:
(a) Mass vaccination against small pox
to curb and finally eradicate this disease from the population. (This has already been successfully done in
India).
(b) Television for eradication of
illiteracy and for mass communication of news and ideas.
(c) Prenatal sex determination
(d) Computers for increase in work efficiency
(e) Putting artificial satellites into
orbits around the Earth
(f) Development of nuclear weapons
(g) Development of new and powerful techniques of chemical and biological
warfare).
(h) Purification of water for drinking
(i) Plastic surgery
(j) Cloning
11
23Lightning was discovered by the
A. onm
B. Thomson
c. Franklin
D. Faraday
11
24Which of the following is not the contribution of Sir Issac Newton?
A. Universal Law of Gravitation
B. Laws of Motion
c. Ultra short Radio Waves
D. Reflecting Telescope
11
25Explain the process of twinkling of stars
( ? )
11
26What is the contribution of S. Chandra
sekhar to physics?
11
27The electric generator is based on which scientific principle?
A. Reflection of ultrasonic waves
B. Superconductivity
c. Faradays laws of electromagnetic induction
D. Magnetic confinement of plasma
11
28Werner Heisenberg is known for his
work on
A. Inelastic scattering of light by molecules
B. Quantum mechanics: Uncertainty principle
C. Theory of super conductivity
D. Expanding universe
11
29What Benjamin Franklin invented?
A. Bifocal spectacles
B. Radio
c. Barometer
D. Hygrometer
11
30Oersted and Faraday unified which of the following achievements?
A. Electric and magnetic phenomena
B. Electromagnetism and optics
c. Electro-weak forces
D. Terrestrial and celestial
11
31Mass of a body remains constant anywhere in the universe. State whether
the statement is true or false.
A. True
B. False
c. Either
D. Neither
11
32Which of the following is not a fundamental force ?
A. Gravitational force
B. Weak nuclear force
c. Strong nuclear force
D. Frictional force
E. Electromagnetic force
11
33Earth pulls every object towards it with a force called:
A. Friction
B. Gravity
c. Tension
D. Collision
11
34Animals make use of ( —– )
( —– ) to carry out their physical
activities and other tasks.
A. contact force
B. non-contact force
c. force of friction
D. muscular force
11
35Assertion
In the falling object example, if you include the effect of air resistance
during the fall and see the situation after the object hits the ground and stays there, the total mechanical energy
is not conserved.
Reason
The general law of energy conservation, however, is still applicable but the total mechanical energy is not conserved
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
11
36What is mechanics?11
37The Giant Metrewave Radio Telescope
(GMRT) is related to
A. Superconductivity
B. Generation, propagation and detection of electromagnetic waves
c. Detection of cosmic radio waves
D. Trapping and cooling of atoms by laser beams and magnetic fields
11
38Which force is strongest of all fundamental forces?
A. Weak nuclear force
B. Strong nuclear force
c. Electromagnetic force
D. Gravitational force
11
39A glass tumbler containing ice shows droplets of water on the outer surface
because
A. The outer surface of the tumbler shows hygroscopic effect
B. Water from inside oozes out through the wall of the tumbler
c. The moisture in the air on coming in contact with the cold surface of the tumbler condenses in the form of droplets of water
D. (A) and (B)
11
40No contact force acts on a bucket when
it is being pulled out of a well using a
rope
A. True
B. False
11
41Which of the following is not a branch of physics.?
A. Mechanics
B. Optics
c. cytogenetics
D. Electrodynamics
11
42Who unified celestial and terrestrial
mechanics?
A. sir Issac Newton
B. James Clerk Maxwell
c. Michael Faraday
D. None of the above
11
43In which of the following layers of the atmosphere most of the ozone is present?
A. Troposphere
B. Exosphere
c. Mesosphere
D. Stratosphere
E. None of these
11
44Rishi chakra was a famous ancient
scholar in the field of ?
A. Ayurvedic medicine
B. Homeopathy
c. Alopathy
D. chemistry
11
45State whether given statement is True or False.

Cashless transaction can be carried out
with ATM ?
A. True
B. False

11
46Textbooks on science may give you a wrong impression that studying science is dry and all too serious and
that scientists are absent-minded
introverts who never laugh or grin. This image of science and scientists is patently false. Scientists, like anyother group of humans, have their share of humorists, and many have led their
lives with a great sense of fun and adventure, even as they seriously pursued their scientific work. Two great physicists of this genre are Gamow and
Feynman. You will enjoy reading their books listed in the Bibliography.
11
47Though the law gives women equal status in India, many people hold unscientific views on a woman’s innate
nature, capacity and intelligence, and in practice give them a secondary status and role. Demolish this view
using scientific arguments, and by quoting examples of great women in science and other spheres; and persuade yourself and others that, given equal opportunity, women are on par with men.
11
48The messenger satellite launched by NASA was to study
A. Mars
B. Mercury
c. venus
D. Saturn
11
49The approach to derive the properties of a bigger, more complex, system from the properties and interactions of its constituent simpler parts is called
A. Reduction
B. Simplification
c. Unification
D. Modification
11
50State whether given statement is True or False.
Science is Classified into various
branches like physics, chemistry, biology, medical science, agriculture
science ?
A. True
B. False
11
51Lightning is observed earlier than the
sound is heard because
A. Light travels faster than sound
B. Thunder is produced later
c. Thunder is produced simultaneously but it travels after light has reached the observer’s eyes
D. Man’s sense of vision is sharper than his sense of hearing
E. None of the above
11
52The force of gravity cannot act at a
distance. State true or false.
A. True
B. False
11
53The branch of science which deals with
nature and natural phenomena is called
A. Sociology
B. Biology
c. civics
D. Physics
11
54What is the study of the modern theory of the strong forces between quarks?
A. Quantum chromodynamics
B. Quantum electromagnetism
c. Quantum electrodynamics
D. Quantum astronomy
11
55Inverse square law of distance is followed by the
A. Gravitational forces
B. Electromagnetic forces
c. Both (a) and (b)
D. Neither (a) and nor (b)
11
56White colour of the cloud is due to
A. reflection of seven colors of light
B. refraction of seven colors of light
C. scattering of seven colors of light
D. absorption of seven colors of light
11
57India has had a long and unbroken tradition of great scholarship – in mathematics, astronomy, linguistics, logic and ethics. Yet, in parallel with this, several superstitious and obscurantistic attitudes and practices flourished in our society and unfortunately continue even today among many educated people too. How will you use your knowledge of science to develop strategies to counter these attitudes?11
58Sir C.V.Raman got Nobel Prize in physics
for the
A. refraction of light
B. reflection of light
c. scattering of light
D. dispersion of light
11
59Nuclear power plant is example of invention related to which field?
A. Electricity
B. Education
c. E learning
D. Medication
11
60Which scientist firstly knew about planet?11
612 December 1942 is known for.
A. The formation of the Big Bang theory
B. The activation of the first operational nuclear reactor
C. The creation of the first controlled chain reaction
D. The development of the first thermonuclear device
11
62Why does the police used dogs for
detective work?
A. Because they have sharp eyesight
B. Because they can hear ultrasonic waves
C. Because they can identify objects by smell
D. All of these
11
63Give the ratio of the strengths of the four fundamental forces in nature.11
64Which of the following scientific
phenomenon is involved in
the generation of Hydroelectric power?
A. Motion of charged particles in electromagnetic fields
B. Conversion of gravitational potential energy into electrical energy
C. Bernoullis principle in fluid dynamics
D. Trapping and cooling of atoms by laser beams and magnetic fields
11
65Who was the first woman to fly in space?
A. Valentina Tereshkova
B. Rhea Seddon
c. sally Ride
D. Anna Fisher
11
66An astronaut in outer space will observe
sky as
A. White
B. Black
c. Blue
D. Red
11
67Write in about 1000 words a fiction
piece based on your speculation on the science and technology of the twentysecond century.
11
68Assertion
Assertion: The basic laws of
electromagnetism govern all electric and magnetic phenomena.
Reason
Reason: The attempts to unify
fundamental forces of nature reflect the
quest for unification.
A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true and reason is not the correct explanation of assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false
11
69What is the name given to India’s Meteorological Research Satellite launched in ( 2003 ? )
A. Vikram-1
B. Bhaskara-
c. Kalpana-1
D. Arya Bhatta- –
11
70“Every great physical theory starts as a heresy and ends as a dogma.”Give some examples from the history of science of the validity of this incisive
remark.
11
71Earth has no gravitational force:
A. True
B. False
( c . ) Both
D. None
11
72Which is the first law university in
India?
A. Al-Ameen College of law
B. Alliance School of law
c. R.K Law college
D. National Law School of India
11
73Gravity is :
A. Down wardly directed force
B. Upwardly directed force
C. Leftward directed force
D. Rightward directed force
11
74What is Physics?11
75Which of the following does not comes under microscopic forces?
A. Normal force
B. Tension force
c. Frictional force
D. All of these
11
76Which is the first open university in
India?
A. Andhra Pradesh Open University
B. Yashwantrao Chavan Maharashtra Open University
C. Indira Gandhi National Open University
D. Nalanda Open University
11
77The latest space ship launched by ISRO the “MANGALYAN” was targeted to reach which planet?
A. Mars
B. Saturn
c. sun
D. Mercury
11
78Which is the largest open university in India?
A. Indira Gandhi National Open University
B. Dr. B.R. Ambedkar Open University
c. Nalanda Open University
D. Yashwantrao Chavan Maharashtra open University
11
79Assertion
Assertion : If we perform an experiment in our laboratory today and repeat the
same experiment on the same objects under identical conditions after a year,
the results are found to be the same.
Reason
Reason : The laws of nature do not
change with time.
A. both assertion and reason are true and reason is the correct explanation of assertion.
B. both assertion and reason are true and reason is not the correct explanation of assertion.
c. assertion is true but reason is false.
D. both assertion and reason are false
11
80The given table shows the rank of three different minerals on the scale of
hardness.
begin{tabular}{ll}
Mineral & Rank of hardness \
( mathrm{x} ) & 5 \
( mathrm{Y} ) & 3 \
hline
end{tabular} ( z ) Based on the data, which of the
following results of scratch test will be
obtained?
( A )
( =sqrt{12} )
в. ( =sqrt{10} )
( c )
( =sqrt{1-x} )
D. ( =sqrt{13} )
11
81particular coastal location in Japan
seem mostly to resemble the legendary face of a Samurai. Given below are two
explanations of this observed fact. Which of these strikes you as a
scientific explanation?
(a) A tragic sea accident several centuries ago drowned a young Samurai. As a tribute to his bravery,
nature through its inscrutable ways immortalised his face by imprinting it
on the crab shells in that area.
(b) After the sea tragedy, fishermen in
that area, in a gesture of honour to their dead hero, let free any crab shell caught by them which accidentally had a shape resembling the face of a Samurai. Consequently, the particular shape of the crab shell survived longer and therefore in course of time the
shape was genetically propagated. This is an example of evolution by artificial selection.
11
82Assertion
Energy is a scalar quantity
Reason
All conserved quantities are scalars
A. Both Assertion and Reason are correct and Reason is
the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
11
83In which year did Hahn and Meitner discover the phenomenon of neutroninduced fission of uranium.?
A . 1938
в. 1950
( c .1945 )
D. 1928
11
84Name the latest theory of fundamental physics in which the basic entity is a one-dimensional object as against the zero-dimensional’ points representing the elementary particles.
A. String theory
B. Supersymmetry
c. symmetry
D. superstring theory
11
85Physics is sometimes referred to as
exact science. Because.
A. Physics interacts with almost all the sciences
B. Due important is given for the measurement of quantities
C. It involves philosophy
D. Physics is related more closely to mathematics than any other science
11
86Classical physics is applicable to the
A. microscopic world
B. macroscopic world
c. both microscopic and macroscopic world
D. cannot say
11
87The magnitude of non-contact force depends upon:
A. distance between two bodies
B. area of contact
c. both of them
D. none of the above
11
88Though India now has a large base in science and technology, which is fast expanding, it is still a long way from realising its potential of becoming a world leader in science. Name some important factors, which in your view
have hindered the advancement
of science in India.
11
89The Steam engine is based on which scientific principle?
A. Faradays laws of electromagnetic induction
B. Laws of thermodynamics
c. Ampere’s Law
D. Total internal reflection of light
11
90A charged comb picks up bits of paper
because of :
A. magnetic force
B. gravitational force
c. contact force
D. electrostatic force
11
91The distance between the sun and the
earth is –
A. 200 million kilometres
B. 150 million kilometres
c. 1.4 light years
D. 3 billion kilometres
11
92Some of the most profound statements
on the nature of science have come
from Albert Einstein, one of the greatest
scientists of all time. What do you think did Einstein mean when he said : “The
most incomprehensible thing about the world is that it is comprehensible”?
11
93Antoine Henri Becquerel was awarded
the Nobel Prize in 1903 for.
A. Discovering spontaneous radioactivity
B. Diffraction of X-rays
c. Demonstrating the influence of earth’s magnetic field on its atmosphere
D. Investigating the absorption of light by crystals
11
94Attempt to formulate your ‘moral’ views on the practice of science. Imagine
yourself stumbling upon a discovery, which has great academic interest but is certain to have nothing but dangerous consequences for the human society. How will you resolve your dilemma?
11
95Gravity is defined as:
A. The push of the earth
B. The force of the earth
C. The capacity of the earth
D. The pull of the earth
11
96The man who is known as the Father of
Experimental Physics is
A. Newton
B. Albert Einstien
c. Galileo
D. Rutherford
11
97Identify the following force:
1)Force between the charged particles.
2)Attractive for unlike charges and
repulsive for like charges.
3) It does not need any intervening medium.
4) It is not the strongest force.
A. Gravitational Force
B. Electromagnetic force
c. strong nuclear force
D. Weak nuclear force
11
98The industrial revolution in England and
Western Europe more than two centuries ago was triggered by some key scientific and technological advances.What were these advances?
11
99Wheel-arid-axle and rope move in:
A. same direction
B. opposite direction
C. perpendicular direction
D. there is no relation between the two
11
100Which of the following countries of the world can be called socialist?
( A )
B. China
c. Nepal
D. U.S.A
11
101The invention which has eased our life
related to field of agriculture is?
A. Thresher
B. Power plant
c. cT scan
D. E learning
11
102Which of the following is a contact force
( ? )
A. Gravitational force
B. Friction
c. Electrostatic force
D. Magnetic force
11
103Which of the following Indian scientists was also one of the Presidents of India?
A. A. P. J. Abdul Kalam
B. Homi Jehangir Bhabha
c. Jagadish Chandra Bose
D. Har Gobind Khorana
11
104The first husband-wife team to get the Nobel Prize for Physics was.
A. Frederick Joliot-Irene Joliot-Curie
B. Pierre Curie-Marie Curie
c. carl cori-Gerty corir
D. Gunnar Myrdal-Alva Myrdal
11
105“Politics is the art of the possible.” Similarly, “Science is the art of the
soluble.” Explain this beautiful aphorism on the nature and practice of science.
11
106Write about your favourite scientist/physicist11
107Which of the following does not depict
the correct link between technology and physics.?
A. Photocell – Photoelectric effect
B. Rocket propulsion – Laws of thermodynamics
c. optical fibres – Total internal reflection of light
D. Fusion test reactor – Magnetic confinement of plasma
11
108Which scientist is most famous for his
work on the quantum physics along side with Albert Einstein?
A. Meghnad Saha
B. S.S. Abhyankar
c. Satyendra Nath Bose
D. Vikram Sarabhai
11
109Assertion
Assertion : The elastic spring force arises due to the net attraction or
repulsion between the neighbouring atoms of the spring when it is elongated or compressed.
Reason
Reason: The laws of derived forces such
as spring force, friction force are
independent of the laws of fundamental
forces in nature.
A. both assertion and reason are true and reason is the correct explanation of assertion.
B. both assertion and reason are true and reason is not the correct explanation of assertion.
c. assertion is true but reason is false
D. both assertion and reason are false.
11
110Which of the following instruments is used to check whether electricity is flowing through a substance or not?
A. Ammeter
B. Voltmeter
c. Tester
D. None of these
11

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