Here we are providing NCERT Class 11 Physics Objective Chapter – 1 Physical World Chapter Wise MCQs for board exam is very important for board exam preparation. This book explains all the concepts and topics in very simple language that the students can easily understand the complex subjects also. This NCERT Class 11 Physics MCQs Chapter – 1 Physical World Chapter consist all important topic regarding NCERT Class 11 Physics Objective Chapter – 1 Physical World. This book basically covers all the major and minor elements that together form a democratic government. Topics like power-sharing, federalism, democracy and diversity, political parties, consequences of democracy, challenges to democracy etc. have been discussed in the NCERT Class 11 Physics Objective Chapter – 1 Physical World. The question papers in CBSE board exams are generally based on the latest NCERT books. Hence, students must follow the NCERT book to prepare effectively for their Class 11 Physics exam. If you want color notes then click here
Class 11 Physics Objective Chapter – 1 Physical World
1. Atomic and molecular phenomena are dealt with by
(a) Newtonian Mechanics
(b) fluid Mechanics
(c) applied Mechanics
(d) Quantum Mechanics
Answer: (d)
2. Which of the following is a possible final step in applying the scientific method
(a) Formulating a hypothesis
(b) Building a theory
(c) Analysis of test results
(d) Formulation of a question
Answer: (c)
3. Which of the following is a possible first step in applying the scientific method
(a) Conducting tests
(b) Formulating a hypothesis
(c) Formulation of a question
(d) Building a theory
Answer: (c)
4. A scientific theory
(a) cannot be changed but can be reformulated
(b) is fixed once and for all because it is logical
(c) is changed to suit new fashion among scientists
(d) can be revised if required to fit new phenomenon or data
Answer: (d)
5. The scientific method is
(a) a prescribed method for investigating phenomena, acquiring new knowledge.
(b) A procedure for proposing new hypothesis
(c) a body of techniques for investigating phenomena, acquiring new knowledge.
(d) A method for proposing new theorie
Answer: (c)
6. Newtonian mechanics could not explain
(a) fall of bodies on earth
(b) Some of the most basic features of atomic phenomena.
(c) movement of planets
(d) flight of rockets
Answer: (b)
7. Heliocentric theory proposed by Nicolas Copernicus was
(a) replaced by circular orbits to fit the data better
(b) replaced by elliptical orbits to fit the data better
(c) replaced by elliptical orbits to fit the taste of new rulers of Italy
(d) replaced by parabolic orbits to fit the data better
Answer: (b)
8. Physics is a
(a) Applied Science
(b) Mathematical Science
(c) Engineering Science
(d) Natural Science
Answer: (d)
9. The word Science originates from the Latin verb Scientia meaning
(a) to know
(b) to see
(c) to experience
(d) to observe
Answer: (a)
Question 10. Just as a new experiment may suggest an alternative theoretical model, a theoretical advance may suggest what to look for in some for in some experiments. Which of the following experiments can be considered to support this claim?
(a) Davisson and Germer Experiment
(b) experimental discovery of positron
(c) scattering of alpha particle or the gold foil experiment
(d) Michelson Morley experiment
Answer: (b)
11. Physics is a
(a) Applied Science
(b) Mathematical Science
(c) Engineering Science
(d) Natural Science
Answer: (d)
12. Just as a new experiment may suggest an alternative theoretical model, a theoretical advance may suggest what to look for in some for in some experiments. Which of the following experiments can be considered to support this claim?
(a) Davisson and Germer Experiment
(b) experimental discovery of positron
(c) scattering of alpha particle or the gold foil experiment
(d) Michelson Morley experiment
Answer: (b)
13. Newtonian mechanics could not explain
(a) fall of bodies on earth
(b) Some of the most basic features of atomic phenomena.
(c) movement of planets
(d) flight of rockets
Answer: (b)
14. Wave picture of light failed to explain.
(a) the photoelectric effect
(b) polarization of light
(c) diffraction of light
(d) interference of light
Answer: (a)
15. The scientific method is
(a) a prescribed method for investigating phenomena, acquiring new knowledge.
(b) A procedure for proposing new hypothesis
(c) a body of techniques for investigating phenomena, acquiring new knowledge.
(d) A method for proposing new theories.
Answer: (c)
16. Atomic and molecular phenomena are dealt with by
(a) Newtonian Mechanics
(b) fluid Mechanics
(c) applied Mechanics
(d) Quantum Mechanics
Answer: (d)
17. The word Science originates from the Latin verb Scientia meaning
(a) to know
(b) to see
(c) to experience
(d) to observe
Answer: (a)
18. Heliocentric theory proposed by Nicolas Copernicus was
(a) replaced by circular orbits to fit the data better
(b) replaced by elliptical orbits to fit the data better
(c) replaced by elliptical orbits to fit the taste of new rulers of Italy
(d) replaced by parabolic orbits to fit the data better
Answer: (b)
19. Which of the following is a possible final step in applying the scientific method
(a) Formulating a hypothesis
(b) Building a theory
(c) Analysis of test results
(d) Formulation of a question
Answer: (c)
20. Which of the following is a possible first step in applying the scientific method
(a) Conducting tests
(b) Formulating a hypothesis
(c) Formulation of a question
(d) Building a theory
Answer: (c)
21. Macroscopic domain includes
(a) phenomena at the laboratory
(b) terrestrial scales
(c) astronomical scales
(d) All of the above
Answer : (d)
22. The person who has been awarded the title of the Father of Physics of 20th century is
(a) Madame Curie
(b) Sir C.V. Raman
(c) Neils Bohar
(d) Albert Einstein
Answer :(d)
23. The branch of science which deals with nature and natural phenomena is called
(a) Sociology
(b) Biology
(c) Civics
(d) Physics
Answer : (d)
24.The scientific principle involves in production of ultra high magnetic fields is
(a) super conductivity
(b) digital logic
(c) photoelectric effect
(d) laws of thermodynamics
Answer : (a)
25. Macroscopic domain includes
(a) All of the above
(b) astronomical scales
(c) terrestrial scales
(d) phenomena at the laboratory
Answer : (a)
26. The man who is known as the Father of Experimental Physics is
(a) Galileo
(b) Newton
(c) Albert Einstein
(d) Rutherford
Answer : (a)
27. Science is exploring, …x… and …y… from what we see around us. Here, x and y refer to
(a) experiment, predict
(b) reasoning, quantitative
(c) qualitative, modify
(d) verification, predict
Answer : (a)
28. The branch of science which deals with nature and natural phenomena is called
(a) Physics
(b) Biology
(c) Sociology
(d) Civics
Answer : (a)
29. Which of the following is true regarding the physical science?
(a) Both
(b) The study of matter are conducted at atomic or ionic levels
(c) None of these
(d) They deal with non-living things
Answer : (a)
30.The scientific principle involves in production of ultra high magnetic fields is
(a) super conductivity
(b) photoelectric effect
(c) digital logic
(d) laws of thermodynamics
Answer : (a)
31. Louis de-Broglie is credited for his work on
(a) matter waves
(b)law of distribution of velocities
(c) electromagnetic theory
(d) theory of relativity
Answer : (a)
32. Madam Marie Curie won Nobel Prize twice which were in the field of
(a) Physics and chemistry
(b)Physics only
(c) Chemistry only
(d) Biology only
Answer : (a)
33. Scientific way of doing things involve
(a) All of the above
(b) hypothesising a possible theory
(c) collecting data
(d) identifying the problem
Answer : (a)
34. The exchange particles for the electromagnetic force are
(a) photons
(b) gravitons
(c) gluons
(d) mesons
Answer : (a)
35. Which of the following is the weakest force?
(a) Gravitational force
(b) None of these
(c) Nuclear force
(d) Electromagnetic force
Answer : (a)
36. Assertion : Electromagnetic force is much stronger than the gravitational force.
Reason : Electromagnetic force dominates all phenomena at atomic and molecular scales
(a) Assertion is correct, reason is correct; reason is a correct explanation for assertion.
(b) Assertion is correct, reason is correct; reason is not a correct explanation for assertion
(c) Assertion is correct, reason is incorrect
(d) Assertion is incorrect, reason is correct
Answer : (a)
37. When we hold a book in our hand, we are balancing the gravitational force on the book due to
(a) normal force provided by our hand
(b) friction force provided by our book
(c) both
(d) None of these
Answer : (a)
38.Which of the following has infinite range?
(a) Both
(b) Electromagnetic force
(c) Gravitational force
(d) None of these
Answer : (a)
39. Who discovered X-rays?
(a) Roentgen
(b) Madam Curie
(c)Chadwick
(d) Thomson
Answer : (a)
40. Who gave general theory of relativity?
(a) Einstein
(b) Marconi
(c) Ampere
(d) Newton
Answer : (a)
41. Which of the following is wrongly matched ?
(a) Humidity-Calorimeter
(b) Coulomb’s law-charges
(c) Lactometer-Milk
(d) Barometer-Pressure
Answer (a)
42. Electric generator works on the scientific principle
(a) Laws of Thermodynamics
(b) Nuclear Fusion
(c) Bernoulli’s Theorem
(d) Electromagnetic Induction
Answer (d)
43. Size of the nucleus is
(a) 10-10 m
(b) 10-14 m
(c) 10-9 m
(d) 10-12 m
Answer (b)
45. Theory of relativity was discovered by
(a) Maxwell
(b) Faraday
(c) Einstein
(d) Pauli
Answer (c)
46. The phenomenon of Photoelectric effect is used in
(a) Photocell
(b) Sonar
(c) Electron Microscope
(d) Optical fibers
Answer (a)
47. The branch of science which deals with nature and natural phenomena is called
(a) Sociology
(b) Biology
(c) Civics
(d) Physics
Answer (d)
48. Atomicity of charge was discovered by
(a) Faraday
(b) Marie Curie
(c) Maxwell
(d) R.A. Millikan
Answer (d)
49. One example where technology predates science is
(a) TV
(b) Steam engine
(c) Radio
(d) Laser surgery
Answer (b)
50. The person who has been awarded the title of the Father of Physics of 20th century is
(a) Madame Curie
(b) Sir C.V. Raman
(c) Neils Bohar
(d) Albert Einstein
Answer (d)
51. Who discovered neutron
(a) Galileo
(b) Chadwick
(c) C.V. Raman
(d) None of them
Answer (b)
52. Who discovered ultra-short radio waves?
(a) James Clerk Maxwell
(b) J.J Thomas
(c) J.C.Bose
(d) Marie Curie
Answer (c)
53. The aeroplane works on the scientific principle
(a) Laws of Thermodynamics
(b) Nuclear Fusion
(c) Electromagnetic Induction
(d) Bernoulli’s Theorem
Answer (d)
54. What is the relation between morality and science?
(a) Morality can be derived from scientific principles
(b) Morality is not the subject matter of science
(c) Science has proved that morality is impractical
(d) Science is immoral
Answer (b)
55. The scientists wh” discovered natural radioactivity belonged to
(a) Italy
(b) Austria
(c) France
(d) England
Answer (c)
56. Which scientist does not belong to Germany?
(a) Heinrich Hertz
(b) Werner Heisenberg
(c) Wilhelm Roentgen
(d) Niels Bohr
Answer (d)
57. Who discovered radioactivity?
(a) Einstein
(b) Henri Becquerel
(c) Newton
(d) C.V.Raman
Answer (b)
58. The wave nature of electrons is used in which of the following devices?
(a) Photocell
(b) Electron microscope
(c) Tokamak
(d) Aeroplane
Answer (b)
59. The basic laws of physics are universal means
(a) The same laws apply in widely different contexts
(b) The same laws do not apply on mars and stars
(c) The same laws apply in similar contexts
(d) The same laws apply in different continents
Answer (a)
60. “Politics is the art of the possible. Similarly, Science is the art of the soluble”. Which of the following statements is a case of this aphorism?
(a) A scientist looks for solutions that can be readily tested, implemented and are practical
(b) A scientist looks for solutions that can are impossible to verify
(c) A scientist looks for solutions that derive from other unproven hypothesis
(d) A scientist looks for solutions that are abstract and unintelligible but elegant
Answer (a)
61. The fundamental force with the shortest range is
(a) Gravitational Force
(b) Weak Nuclear Force
(c) Strong Nuclear Force
(d) Electromagnetic Force
Answer (b)
61. The phenomenon of Photoelectric effect is used in
(a) Photocell
(b) Sonar
(c) Electron Microscope
(d) Optical fibers
Answer (a)
62. What is central to the growth of physics?
(a) Qualitative descriptions
(b) Conjectural descriptions
(c) Speculative descriptions
(d) Quantitative measurement
Answer (d)
63. According to Einstein’s theory, mass and energy are related as
(a) E = m/c
(b) E = mc2
(c) E = mc
(d) E = m/c2
Answer (b)
64. Which is the strongest fundamental force of nature?
(a) Gravitational force
(b) Weak nuclear force
(c) Strong nuclear force
(d) Electromagnetic force
Answer (c)
65. A scientific theory is accepted if
(a) The theory is approved by a panel of people after studying the theory only
(b) The theory is derivable from other theories logically.
(c) The theory is very simple elegant or very complicated
(d) Predictions of the theory are confirmed by experiments
Answer (d)
66. The difference between nuclear forces and electromagnetic forces is that
(a) Nuclear forces have longer range compared to electromagnetic forces
(b) Nuclear forces are mediated by photons compared to gluons for electromagnetic forces
(c) Nuclear forces do not depend on charge
(d) Nuclear forces are weaker compared to electromagnetic forces
Answer (c)
67. Which force operates among the heavier elementary particles?
(a) Strong nuclear force
(b) Electromagnetic force
(c) Gravitational force
(d) Weak nuclear force
Answer (a)
68. Which of these were not major technological advances during industrial revolution in England and Europe?
(a) Power loom
(b) The cotton gin
(c) Satellite communication
(d) Steam engine
Answer (c)
69. What is the correct sequence of events technology gives rise to new science or new science gives rise to technology?
(a) Science can give rise to technology only
(b) Technology and science are independent
(c) Both can happen. Science can give rise to technology and technology can give rise to new science
(d) Technology can give rise to new science only
Answer (c)
70. Which scientist does not belong to Germany?
(a) Heinrich Hertz
(b) Werner Heisenberg
(c) Wilhelm Roentgen
(d) Niels Bohr
Answer (d)
71. On which laws, is the principle of rocket propulsion based?
(a) Newton’s first law of motion
(b) Newton’s law of gravitation
(c) Laws of thermodynamics
(d) None of the Above
Answer (d)
72. The word Science originates from the Latin verb Scientia meaning
(a) To observe
(b) To know
(c) To experience
(d) To see
Answer (b)
73. What is the relation between morality and science?
(a) Morality can be derived from scientific principles
(b) Morality is not the subject matter of science
(c) Science has proved that morality is impractical
(d) Science is immoral
Answer (b)
74. The sun releases energy coming from
(a) Weak electrical forces
(b) Gravitational forces
(c) Electromagnetic waves
(d) Strong nuclear forces
Answer (d)
75. To get the law of free fall under gravity, it is better
(a) To create a real world experiment of feather and stone
(b) To create a situation where in the air resistance is not negligible
(c) To create a situation where in the air resistance is negligible
(d) None of the Above
Answer (d)
76. Who discovered ultra-short radio waves?
(a) James Clerk Maxwell
(b) J.J Thomas
(c) J.C.Bose
(d) Marie Curie
Answer (c)
77. Scientists strategy in general is to
(a) Focus first on the essential features of a phenomenon and remove its less significant aspects.
(b) Keep building complicated theories
(c) Focus first on the complex features of a phenomenon and add its less significant aspects from the start
(d) Focus first on the complex features of a phenomenon and remove its less significant aspects
Answer (a)
78. The microscopic domain of physics deals with
(a) The constitution and structure of matter at the scales of atoms and nuclei and their interaction with different elementary particles
(b) The constitution and structure of matter at the scales of atoms and nuclei and their interaction with different bodies on the earth
(c) The constitution and structure of matter at the scales of stars and planets and their interaction with different elementary particles
(d) None of the Above
Answer (a)
79. Proper framework for explaining microscopic phenomena is
(a) Quantum Theory
(b) Theory of relativity
(c) Maxwell’s theory
(d) Classical physics
Answer (b)
80. The major contribution of C.V. Raman was
(a) Measurement of electronic charge
(b) Inelastic scattering of light by molecules
(c) Nuclear model of atom
(d) Model of hydrogen atom
Answer (b)
81. One example where technology predates science is
(a) TV
(b) Steam engine
(c) Radio
(d) Laser surgery
Answer (b)
