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

Try The MCQ's Test For PPSC Physics Topic 7 Modern Physics

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PPSC Physics Topic 7 Modern Physics

00:00
Question # 1

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

Question # 2

In potential for the material of cathode pure metals are rarely used because of their

Question # 3

When of the following radiations are not emitted by electron transitions in atoms.

Question # 4

What is the relativistic version of the Schrodinger equation.

Question # 5

The process of conversation of a photon into an electron and a position is called.

Question # 6

The neutral atoms of all isotopes of the same element contain the same numbers of.

Question # 7

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

Question # 8

The energy in electron volts necessary to remove the most loosely bound electron from the neutral atom is known as.

Question # 9

Mosley's law establishes the x rays fluorescence's of target element with its.

Question # 10

The binary equivalent of 25 is

Question # 11

The band width of an audio amplifier is.

Question # 12

Current gain of a CE amplifier is 50, ITS hfe is about

Question # 13

Emitter follower amplifier is an example of.

Question # 14

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

Question # 15

In a nuclear reactor chani reaction is controlled by introducing.

Question # 16

Low frequency response of an amplifier is mainly limited by.

Question # 17

Magnetic field does not cause deflection in

Question # 18

Why transistor is preferred to triode valve for use as an amplifier.

Question # 19

Half life of a radioactive elements 10 minutes If the initial cont. rate is 368 counts per minute for what time count rate reaches 32 counts per minute.

Question # 20

One gray is equal to.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The half life of a radioactive substance as compared to its mean lif eis.
A. 30%
B. 50%
C. 70%
D. 90%
2 Which of the following has greatest binding energy per nucleon.
A. Normal hydrogen
B. Deuterium
C. Tritium
D. Helium-4
3 Which of the following is not an electromagnetic wave.
A. game rays
B. Ultraviolet rays
C. Ultrasonic waves
D. Microwaves
4 In fission reaction, heavy water is used as a
A. Coolant
B. Moderator
C. Heat exchanger
D. Controller of reaction rate
5 In potential for the material of cathode pure metals are rarely used because of their
A. Low reflecting power
B. High reflecting power
C. Low resolving power
D. High resolving power
6 The advantage of electron tube over a transistor is.
A. Its high efficiency
B. Its high gain
C. Low consumption of power
D. Low input impedance
7 Positron are produced during.
A. Annihilation
B. ionization
C. Pair production
D. x rays production
8 As oscillator is basically an amplifier with loop gain
A. Zero
B. Infinity
C. Less than unity
D. More than unity
9 One gray is equal to.
A. 1 J-1 kg -1
B. 1 J -1 kg -2
C. 1 J 1 -g-1
D. 1 j kg -2
10 Transistors with various combinations are widely used as switches in.
A. electric generators
B. Rectificers
C. Amplifiers
D. Computers

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