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

Which of the following quantities is discrete according to Bohr's hypothesis.

Question # 2

The transition of inner shell electrons in heavy atoms gives rise to the emission of.

Question # 3

Ebers-Moll model describes the working of a

Question # 4

The decay process in which an unstable nucleus splits into two fragments of comparable mass is known as.

Question # 5

The X-rays coming from a X-rays tube

Question # 6

Which experiment is a demonstration that matter and energy can display properties of both waves and particles.

Question # 7

Induced fission result from the absorption of

Question # 8

X-rays are absorbed maximum by

Question # 9

Specially designed solid state detector can be used to detect.

Question # 10

The most convenient unit for energy at the atomic level is.

Question # 11

The band width of an audio amplifier is.

Question # 12

Particle which can be added to the nucleus of an atom with changing its chemical properties are called.

Question # 13

The resistance between(+) and (-) inputs of an amplifier is.

Question # 14

In which of the following controlled nuclear chain reaction is used to liberate energy.

Question # 15

The electrons behave as waves, because they can .

Question # 16

When a helium atom loses an electron it becomes.

Question # 17

The input exultation for a JFET is

Question # 18

Which of the following is required for maintaining sustained chain reaction.

Question # 19

An AND gate is.

Question # 20

Which of the following phenomenon is explained by the tunnel efffect.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Cosmic rays mostly comprise of
A. Neutral particles
B. Negative charged particles
C. Positively charged particles
D. Ions
2 The constant lamda is called the.
A. Decay constant
B. Gas constant
C. Planck's constant
D. Dose constant
3 The chain reaction is controlled by a series of rods usually made of.
A. uranium
B. Cadimium
C. Boron
D. Steel
4 The phenomenon is which the wavelength of scattered X-rays is larger than the incident X-rays is known as.
A. Zeeman's effect
B. Photoelectric effect
C. Compton's effect
D. Annihilation of matter
5 A factory buy 100 g of a radioactive chemical with a half life of 5 years which decays to a stable compound How much of the chemical will still be radioactive 10 years time.
A. 25 g
B. 50 g
C. 75 g
D. 100 g
6 Which of the following circuits is used as local oscillator in radio receivers.
A. AF oscillator
B. Phase Local Loop
C. RF oscillator
D. All of the above
7 X-rays are good for imagining
A. Tendons
B. Brain
C. Bones
D. Heart
8 Which one of the following has maximum frequency.
A. Visible light
B. Gama rays
C. Ultraviolet rays
D. Infrared rays
9 Which one of the following is a convenient energy unit to express the energy of sub atomic particles.
A. Joule
B. electron volt
C. Watt
D. Curie
10 The charge on a helium nucleus is equal to the charge of.
A. Two electrons
B. Two protons
C. Two neutrons
D. One proton

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