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 nucleus of tritium is called.

Question # 2

The mass of proton is equal to.

Question # 3

Negative feedback

Question # 4

The energy that must be added to separate the nucleus is called.

Question # 5

Which of the following describes that the time interval between two events may be different in different of references

Question # 6

Which of the following detectors can count fast and operate at low voltage.

Question # 7

A complete amplifier circuit made on a silicon chip and enclosed in a small capsule is

Question # 8

Tracer techniques make use of.

Question # 9

Which of the following radiations can penetrate 20 cm thick steel.

Question # 10

In a resistor, when base width decreases with increasing Vbc, this phenomenon is called.

Question # 11

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

Question # 12

When we pass a radiation from a radioactive material through an electric field.

Question # 13

Low frequency response of an amplifier is mainly limited by.

Question # 14

In a nuclear reactor chani reaction is controlled by introducing.

Question # 15

The splitting of atomic energy levels and the associated spectrum lines when the atoms are placed in a magnetic field is called.

Question # 16

What is the quantitative description of the effect of radiation on the living tissue.

Question # 17

An operational amplifier can be used as a

Question # 18

A deuteron is

Question # 19

What is the scale for measurement of Banbridge mass spectrograph.

Question # 20

Emitter follower amplifier is an example of.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 X-rays are not used in RADARs because
A. They are not reflected by the target
B. they are not completely absorbed by air
C. They damage the target
D. They are reflected by the target
2 Which of the following quantities is discrete according to Bohr's hypothesis.
A. Momentum
B.
Potential energy
C. Angular velocity
D. Angular momentum
3 There are how many modes of operations of a BJT.
A. 2
B. 3
C. 4
D. 5
4 The Inner electrons in heavy atoms can be disturbed and dislodged by.
A. X rays
B. Alpha particle
C. Beta particles
D. gama particles
5 The potential due to which an electron is lifted from gerund state to excited state is.
A. Potential gradient
B. excitation potential
C. Ionization potential
D. Potential difference
6 The chemical behavior of an atom is determined by
A. Mass number
B. Number of Isotopes
C. Atomic number
D. Binding energy
7 What is the basic advantage of class A operation of an amplifier.
A. It has high efficiency
B. It has high gain
C. It has low distortion
D. It has high distortion
8 Which both elements are good for nuclear fission.
A. Thorium an uranium
B. Thorium and radium
C. Plutonium and uranium
D. Plutonium and throrium
9 The rest mass of a particle is independent of the
A. Wavelength of the particle
B. Mass of the particle
C. Speed of the particle
D. Energy of the particle
10 In Compton's effect the change in wavelength of a scattered photon is called.
A. Angle of emergence
B. Angle of refraction
C. Angle of deviation
D. Compton shift

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