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MCQ Questions for CBSE Class 12 with Answers
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MCQ Questions for CBSE Class 8 with Answers
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All About Physics Quiz
1.
Which is the weakest force in nature?
gravity
weak force
strong force
electromagnetic force
2.
Pierre Gassendi, a French philosopher-scientist, observed gunfire from a distance in order to measure which natural phenomenon?
gravity
the speed of sound
atmospheric interference
the speed of light
3.
Who among these men was the first scientist to conduct a controlled nuclear chain reaction experiment?
Albert Einstein
Richard P. Feynman
Enrico Fermi
Arthur Holly Compton
4.
Physicist J.J. Thomson's atomic model, sometimes called the plum-pudding model, describes the atom as taking which configuration?
positively charged matter in which negatively charged electrons are embedded
negative electrons occupying specific shells extending outward from a dense, positive nucleus
a dense, positive nucleus surrounded by electrons revolving in a set number of specific orbits
a dense, positively charged nucleus orbited by negatively charged electrons
5.
What did physicist J.J. Thomson discover in the 1890s when he analyzed cathode rays and concluded that they were made up of charged “corpuscles”?
radioactivity
photons
electrons
ions
6.
What is the phenomenon of Raman scattering, named after Indian physicist C.V. Raman?
motion of atoms in ionized gas
change of wavelength of deflected light
effects of cloud layers on radio emissions
statistical distribution of meteorite impacts
7.
What reaction involving atomic nuclei is the source of the Sun’s energy?
nuclear fusion
chemical combustion
nuclear fission
ionization
8.
In the early 18th century, what startling conclusion did John Dalton reach regarding the “ultimate particles,” or atoms, of each of the chemical elements?
all atoms can be divided into even smaller particles
each element is made up of its own unique atom
all atoms bear either a positive or a negative charge
all atoms of all elements are fundamentally alike
9.
What is the name of the theoretical explanation of the behaviour of subatomic particles offered by British physicist P.A.M. Dirac in the 1920s?
superstring theory
atomism
quantum field theory
electron theory
10.
Whose work in quantum physics was referred to by Albert Einstein as “the highest form of musicality in the sphere of thought”?
Niels Bohr
P.A.M. Dirac
Max Born
Carl David Anderson
11.
Which wave phenomenon results from the interference or superimposition of waves moving in opposite directions?
harmonic waves
sinusoidal waves
standing waves
light
12.
What is the unit of measure for cycles per second?
ampere
decibel
ohm
hertz
13.
A transverse wave oscillates along paths at what angle to the direction of the wave's propagation?
right angles
reflex angles
acute angles
obtuse angles
14.
What is the SI unit of an electric charge?
coulomb
kelvin
second
ampere
15.
Which type of electromagnetic radiation has the shortest wavelength?
X-ray
microwave
radio wave
gamma ray
16.
For what discovery were Owen Chamberlain and Emilio Segrè awarded the Nobel Prize in Physics in 1959?
baryons
muoniums
antiprotons
antimatter
17.
What is the capacitance of a capacitor when one coulomb of electricity changes the potential between the plates by one volt?
one henry
one erg
one watt
one farad
18.
What is tribology?
study of interaction of sliding surfaces
study of interactions of various types of matter
study of interaction of electromagnetic radiation with matter
study of interaction of volume temperature and gas pressure
19.
Who discovered the rotating magnetic field?
Nikola Tesla
Georgy Flerov
Paul Langevin
Pierre Curie
20.
What term defines work done per unit of time?
electric current
magnetic flux
power
angular momentum
21.
What term refers to the change of velocity with time?
acceleration
gravity
distance
motion
22.
Arthur Eddington is known for investigating which type of celestial body?
comet
star
asteroid
planet
23.
What is the flow of electric charge that periodically reverses direction?
displacement current
alternating current
eddy current
electric current
24.
Which law states that the magnetic fields are related to the electric current produced in them?
Ampere's law
Ohm's law
Avogadro’s law
Boyle's law
25.
The thought experiment known as Schrödinger’s cat postulates that a cat can be in two states at the same time. What are those two states?
moving and stationary
alive and dead
awake and asleep
kitten and adult
26.
What is the internal force per unit area of a body that arises from externally applied forces?
action
stress
displacement
moment
27.
What is vaporization of dry ice an example of?
sublimation
evaporation
condensation
cavitation
28.
A candela is the SI unit for what?
inductance
luminous intensity
amount of a substance
radioactivity
29.
What is the unit of magnetic induction?
newton
mole
tesla
joule
30.
What is the formula for density?
d = M-V
d = M/V
d = MV
d = M+V
31.
For which invention did Akasaki Isamu win the Nobel Prize for Physics in 2014?
blue LEDs
holography
automatic sun valves
integrated circuits
32.
Who is best known for the rediscovery of “fixed air”?
David Gross
Vilhelm Bjerknes
Henry Cavendish
Joseph Black
33.
With whom did Ferdinand Braun share the Nobel Prize in Physics in 1909 for the development of wireless telegraphy?
Alexander Graham Bell
Guglielmo Marconi
Alexander Stepanovich Popov
Gabriel Lippmann
34.
Why was Ernest Orlando Lawrence awarded the Nobel Prize in Physics in 1939?
invention of the cyclotron
discovery of the multiverse
discovery of neptunium
invention of hydrogen bomb
35.
What is used to measure wind speed?
barometer
dynamometer
altimeter
anemometer
36.
Who formulated the second law of thermodynamics?
Nicolas Léonard Sadi Carnot
Rudolf Clausius
Ludwig Boltzmann
Ernst Mach
37.
What is the rate of acceleration of gravity at the Earth’s surface?
7.8m/s/s (25.6 feet/s/s)
6.7m/s/s (22 feet/s/s)
11.2m/s/s (36.7 feet/s/s)
9.8m/s/s (32 feet/s/s)
38.
Which of the following is not a scalar quantity?
mass
energy
force
volume
39.
What law applies to the working of hydraulic brakes in automobiles?
Newton's second law
Pascal's law
Coulomb's law
Hooke's law
40.
What is Newton's first law of motion about?
work
momentum
inertia
torque
41.
Ohm's law describes the relationship between what?
frequency, wavelength, and velocity
current and drift velocity
current, voltage, and resistance
kinetic energy and momentum
42.
The first law of thermodynamics is also known by what name?
conservation of mass
conservation of energy
conservation of linear momentum
conservation of charge
43.
What phenomenon scatters a light beam by suspended particles in a gas or liquid?
Zeeman effect
Tyndall effect
Allais effect
Schwinger effect
44.
What is the escape velocity for a body from the surface of the Earth?
9.2 km/sec (5.71 miles/sec)
2.4 km/sec (1.49 miles/sec)
11.2 km/sec (6.96 miles/sec)
5.01 km/sec (3.11 miles/sec)
45.
What device can change diverging light into a parallel beam?
interferometer
SWR meter
spectrometer
collimator
46.
Who discovered canal rays?
Robert Millikan
Arnold Sommerfeld
Eugen Goldstein
Ernest Rutherford
47.
Who built the first fuel cell?
Enrico Fermi
Sir William Robert Grove
Henry Moseley
David Edward Hughes
48.
What material emits light when exposed to radiation?
chromophore
phosphor
alexandrite
melanophore
49.
Who first discovered the neutron?
Wolfgang Pauli
James Chadwick
Louis de Broglie
Otto Frisch
50.
Who discovered the principle of interference of light?
Robert Hooke
Thomas Young
Paul Ehrenfest
Philip W. Anderson
51.
Who wrote the
Principia
?
Marie Curie
John Locke
Issac Newton
Thomas Edison
52.
Who proposed the general theory of relativity?
Richard Feynman
Karl Schwarzschild
Albert Einstein
Hendrik Lorentz
53.
What is the unit of measurement of the electromotive force?
watt
hertz
pascal
volt
54.
For what was Carl David Anderson awarded the Nobel Prize in Physics in 1936?
discovery of B mesons
discovery of antineutrons
discovery of positrons
discovery of protons
55.
What is the other name of strong force?
gravitational force
electrical force
nuclear force
magnetic force
56.
What is the change in the direction of a wave with a change in the medium called?
reflection
rotation
refraction
resonance
57.
What causes the perceived pitch of the object to be higher when an object moves closer to the source?
Christofilos effect
Evershed effect
Glasser effect
Doppler effect
58.
What instrument measures and records the relative humidity of air?
photometer
pH meter
hygrometer
thermometer
59.
Who discovered electromagnetic induction?
Michael Faraday
André-Marie Ampère
Heinrich Hertz
John Lewis Hall
60.
What is used to split white light into different colors?
thermometer
magnifying glass
mirror
prism
61.
Decibel is the unit used for measuring what?
loudness
temperature
pitch
amplitude
62.
Who invented the electron microscope?
Max Born
David Brewster
Christiaan Huygens
Ernst Ruska
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