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 binary equivalent of 25 is

Question # 2

X-rays are also used for

Question # 3

The X-rays coming from a X-rays tube

Question # 4

The total energy of an electron in an orbit around the nucleus is.

Question # 5

Which one of the following spectra series is in the ultraviolet region.

Question # 6

The SI unit of equivalent dose is

Question # 7

An increase in frequency above threshold frequency results in.

Question # 8

How many types of quarks were suggested i 1964 quark theory.

Question # 9

The phenomenon of radioactivity is associated with

Question # 10

Why hydrogen atom does not emit x-rays.

Question # 11

Which temperature is required for the fusion of two nuclides.

Question # 12

Compton scattering experiment seemed to indicate that radiation had

Question # 13

The electrons behave as wave because.

Question # 14

At room temperature the potential difference between the two sides of depletion region for silicon is of the order of.

Question # 15

Transistors with various combinations are widely used as switches in.

Question # 16

The bunding energy per nucleon for iron is.

Question # 17

Which of the following is its own anti particle.

Question # 18

The part of theory of relativity which deals with accelerated bodies is called.

Question # 19

Radioactive decay series can be represents on

Question # 20

Which of the following atom pair have the same structure.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The process of pair production will take place if the energy of photon is greater than
A. 0.21 MeV
B. 0.51 MeV
C. 1.51 MeV
D. 1.21 MeV
2 Atomic reactor is based on
A. Controlled chain reaction
B. Uncontrolledly chain reaction
C. Nuclear fission
D. Nuclear fusion
3 The maximum K.E of photo electrons depends upon
A. Energy of incident radation
B. Frequency of incident radiation
C. Wavelength of incident radiation
D. Mass of incident radiation
4 Which of the following has greatest binding energy per nucleon.
A. Normal hydrogen
B. Deuterium
C. Tritium
D. Helium-4
5 When a beta particle travels though a medium it knocks out electrons from the atoms due to.
A. Gravitational force of attraction
B. Electrostatic force of repulsion
C. Nuclear force
D. Electromagnetic induction
6 The molecular weight of D2O is
A. 16
B. 18
C. 20
D. 24
7 The angle of scattering for which the Compton shift is maximum is.
A. 0 o
B. 45 o
C. 80 o
D. 180 o
8 Which of the following can be used as an arrester in a nuclear reactor.
A. Graphite
B. heavy water
C. Uranium
D. Cadmium
9 Neither the position nor the momentum of a particle can be predicted with arbitrarily great precision is the statement of.
A. Archimede's principle.
B. Heisenberg uncertainty principle
C. Mosley's law
D. Schrodinger's wave equation
10 Which of the following is formed by decay of a free neurton.
A. A number of electrons
B. Two protons
C. A proton and an electron
D. An alpha particle

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