Physical World MCQ Questions Class 11 Physics Chapter 1
NCERT MCQ Questions for Class 11 Physics Chapter 1 Physical World. Physical World MCQ Questions with Answers from Class 11 Physics.
Physical World MCQ Questions Class 11 Physics Chapter 1
Physical World Multiple Choice Questions with Answers Class 11 Physics Chapter 1 PDF is available.
1) Classical physics deals with the
a) Microscopic phenomenon
b) Macroscopic phenomenon
c) Both a and b
d) None
Ans: b) macroscopic phenomenon
2) Classical physics includes
a) Electrodynamics
b) Optics
c) Thermodynamics
d) All
Ans: d) all
3) Electrodynamics deals with the electric and magnetic phenomenon associated with
a) Charged bodies
b) Magnetic bodies
c) Both a and b
d) None
Ans: c) both a and b
4) Law of inertia was discovered by
a) Galileo Galilei
b) Isaac Newton
c) Archimedes
d) None
Ans: a) Galileo Galilei
5) Principle of buoyancy and principle of the lever was discovered by
a) Galileo Galilei
b) Isaac Newton
c) Archimedes
d) None
Ans: c) Archimedes
6) Universal law of gravitation, laws of motion and reflecting telescope was discovered by
a) Galileo Galilei
b) Einstein
c) Archimedes
d) Isaac Newton
Ans: d) Isaac Newton
7) Electromagnetic theory was given by
a) Isaac Newton
b) Galileo Galilei
c) James Clerk Maxwell
d) W. K. Roentgen
Ans: c) James Clerk Maxwell
8) Ultra short radio waves was discovered by
a) W K Roentgen
b) Isaac Newton
c) J. C. Bose
d) None
Ans: c) J. C. Bose
9) X rays was discovered by
a) J C Bose
b) W K Roentgen
c) J J Thomson
d) None
Ans: b) W K Roentgen
10) Discovery of electron was given by
a) J C Bose
b) W K Roentgen
c) J J Thomson
d) Albert Einstein
Ans: c) J J Thomson
11) Photoelectric effect explanation and theory of relativity was given by
a) Isaac Newton
b) Galileo Galilei
c) Albert Einstein
d) Michael Faraday
Ans: c) Albert. Einstein
12) Laws of electromagnetic induction was given by
a) Michael Faraday
b) James Clerk Maxwell
c) Galileo Galilei
d) J JThomson
Ans: a) Michael Faraday
13) Cosmic radiation was given by
a) J J Thomson
b) W K Roentgen
c) Victor Francis Hess
d) James Clerk Maxwell
Ans: c) Victor Francis Hess
14) Quantum model of hydrogen atom was discovered by
a) R. A. Millikan
b) C. V. Raman
c) Niels Bohr
d) None
Ans: c) Niels Bohr
15) The exclusion principle was given by
a) C. V. Raman
b) Niels Bohr
c) Wolfgang Pauli
d) None
Ans: c) Wolfgang Pauli
16) The discovery of neutron was given by
a) J. J. Thomson
b) James Clerk Maxwell
c) James Chadwick
d) Niels Bohr
Ans: c) James Chadwick
17) Nuclear reactors are based on
a) Nuclear fission
b) Controlled nuclear fission
c) Nuclear fusion
d) None
Ans: b) controlled nuclear fission
18) The scientific principle used in computers is
a) Superconductivity
b) Photoelectric effect
c) Digital logic
d) None
Ans: c) digital logic
19) LASER stands for
a) Light attenuation by stimulated emission of radiation
b) Light amplification by stimulated emission of radiation
c) Both a and b
d) None
Ans: b) Light amplification by stimulated emission of radiation
20) Production of ultra high magnetic fields is based on the scientific principle of
a) Digital logic
b) Electromagnetism
c) Superconductivity
d) Photoelectric effect
Ans: c) superconductivity
21) Newton’s laws of motion is the scientific principle used in
a) Computers
b) Electric generator
c) Rocket propulsion
d) None
Ans: c) rocket propulsion
22) Electric generator is based on the scientific principle
a) Newton’s laws of motion
b) Superconductivity
c) Faraday’s laws of electromagnetic induction
d) None
Ans: c) Faraday’s less of electromagnetic induction
23) Reflection of ultrasonic waves this principle is used in
a) RADAR
b) SONAR
c) SOLAR
d) Optical fibre
Ans: b) SONAR
24) The principle of total internal reflection is used in
a) Electron microscopy
b) Sonar
c) Optical fibre
d) Photoelectric effect
Ans: c) optical fibre
25) The scientific principle of wave nature of electron is used in
a) Computers
b) Optical fibre
c) Photoelectric effect
d) Electron microscope
Ans: d) electron microscope
26) The principle of photoelectric effect is used in
a) Optical fibre
b) Photocell
c) Computers
d) Solar
Ans: b) photocell
27) The force of mutual attraction between any two objects due to their masses is called as
a) Electromagnetic force
b) Electrostatic force
c) Gravitational force
d) Nuclear force
Ans: c) Gravitational force
28) Gravitational force is always
a) Attractive
b) Repulsive
c) Both a and b
d) None
Ans: a) attractive
29) Electromagnetic force may be
a) Attractive
b) Repulsive
c) Both a and b
d) None
Ans: c) both a and b
30) The force which binds protons and neutrons in a nucleus is called
a) Weak nuclear force
b) Strong nuclear force
c) Both a and b
d) None
Ans: b) string nuclear force
31) The strongest force among all the fundamental forces is
a) Gravitational force
b) Electromagnetic force
c) Strong nuclear force
d) Weak nuclear force
Ans: c) strong nuclear force
32) The force which is charge independent is the
a) Strong nuclear force
b) Weak nuclear force
c) Gravitational force
d) Electromagnetic force
Ans: a) string nuclear force
33) The range of gravitational force is
a) Finite
b) Infinite
c) Very short
d) Short
Ans: b) infinite
34) The range of weak nuclear force is
a) Short
b) Very short
c) Infinite
d) Finite
Ans: b) very short
35) The range of electromagnetic force is
a) Finite
b) Short
c) Very short
d) Infinite
Ans: d) infinite
36) The range of strong nuclear force is
a) Short
b) Very short
c) Infinite
d) Finite
Ans: a) short
37) The force which operates among all the objects in the universe is
a) Nuclear force
b) Electromagnetic force
c) Gravitational force
d) None
Ans: c) gravitational force
38) The force between nucleons, heavier elementary particles is
a) Weak nuclear force
b) Strong nuclear force
c) Gravitational force
d) Electromagnetic force
Ans: b) strong nuclear force
39) The Einstein’s mass energy relation is given by
a) E= mc
b) E = mc2
c) E= m/c
d) None
Ans: b) E = mc2
40) The conserved quantities of an isolated system are
a) Total linear momentum
b) Total angular momentum
c) Both a and b
d) None
Ans: c) both a and b