PPSC Physics Topic 7 MCQ Test With Answer

Prepare Modern Physics and all other important topics with PPSC Physics online test. Modern Physics is a term that is used to describe all the discoveries and observations that made physicists rethink their understanding of Physics in the 19th and 20th centuries. In this day and age, one can't study Physics without having a firm understanding of concepts of Modern Physics. That’s why seekers for PPSC Physics jobs need to understand the subject of Modern Physics. Examiners ask many questions from this topic in the PPSC Physics test.

To make the PPSC exam preparation easier for you, team IlmKiDunya.com has created the PPSC Physics online test portal. On this page, you can attempt the PPSC online test MCQs about Modern Physics. Many students complain that they don’t find information about the PPSC Physics exam preparation. We at IlmKiDunya.com bring PPSC online test to your fingertips so you can prepare quickly for the test.

MCQ's Test For PPSC Physics Topic 7 Modern Physics

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PPSC Physics Topic 7 Modern Physics

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Question # 1

The usefulness of X rays is largely due to their

Question # 2

Which of the following are electromagnetic waves.

Question # 3

X-rays are not used in RADARs because

Question # 4

The best shield against Gama rays would be of

Question # 5

When light of particular frequency is allowed to fall upon a metal surface electrons are emitted from a these emitted electrons are called.

Question # 6

An operational amplifier can be used as a

Question # 7

Tracer techniques make use of.

Question # 8

The rest mass of a particle is independent of the

Question # 9

Which one of the following has the largest wavelength.

Question # 10

At what speed the mass of a body will be doubled.

Question # 11

The gama rays have

Question # 12

Transistor are made from

Question # 13

The mass defect of Bohr's atomic model is

Question # 14

Which Isotopes is use din radioactive dating.

Question # 15

X-rays are

Question # 16

The loss of mass in a.m.u in a nuclear change can be calculated from energy involved in MeV by

Question # 17

Radio carbon in the atmosphere is produced by the bombardment of.

Question # 18

Which BJT configurations used for signal inversion.

Question # 19

Alpha particles emitted from a radioactive material are.

Question # 20

What is the energy equivalent to amu in Me V

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Which one of the following is a neutron absorber
A. Pb
B. Cd
C. Cu
D. Ag
2 The most abundant isotope of neon is.
A. Neon -20
B. Neon -21
C. Neon -22
D. Both a and c
3 Which quantity remains fixed in isobars.
A. Mass number
B. Atomic number
C. Number of neutrons
D. Number of protons
4 Which of the following quantities is discrete according to Bohr's hypothesis.
A. Momentum
B.
Potential energy
C. Angular velocity
D. Angular momentum
5 When light of particular frequency is allowed to fall upon a metal surface electrons are emitted from a these emitted electrons are called.
A. Photons
B. Holes
C. Quants
D. Photo electrons
6 In heavy atims the electrons are assumed to be arranged in.
A. Elliptical shells
B. Inner shells
C. Concentric shells
D. Outer shells
7 The path of electron in Rutherford atomic model according to classical theory a.
A. Parabolic
B. Straight line
C. Spiral
D. Circular
8 Though the wavelength of X-rays is smaller than that of visible light yet the speed of X-rays in vacuum is.
A. longer that that of visible light
B. Smaller than that of visible light
C. Same as that of visible light
D. Unpredictable
9 In scattering experiment which force scatters alpha particle.
A. Nuclear force
B. Coulomb's force
C. Gravitational force
D. Centripetal force
10 X-rays spectrum may be
A. Continuous spectrum
B. Discontinuous spectrum
C. Line spectrum
D. Continuous and line spectrum

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