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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  • Total Questions20

  • Time Allowed20

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PPSC Physics Topic 7 Modern Physics

00:00
Question # 1

During the alpha decay process

Question # 2

In the experiment of photo electric effect the minimum frequency of photons at which electrons are emitted from a metal surface is called.

Question # 3

Which both elements are good for nuclear fission.

Question # 4

The radius of second orbit of hydrogen atom is

Question # 5

The force that bonds protons and neutrons together int he nucleus despite the electrical repulsion of the protons is called.

Question # 6

The X-rays coming from a X-rays tube

Question # 7

Which of the following circuits is used as local oscillator in radio receivers.

Question # 8

Which one of the following is a convenient energy unit to express the energy of sub atomic particles.

Question # 9

Which particle interact via all fundamental forces.

Question # 10

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

Question # 11

The scientific theory concerning the coming into existence of universe.

Question # 12

An increase in frequency above threshold frequency results in.

Question # 13

Which is the famous standard model of the universe.

Question # 14

Which of the following has greatest binding energy per nucleon.

Question # 15

An Alpha particle is the same as

Question # 16

The absorption of X-rays in a given material follows.

Question # 17

Which one of the following has the largest wavelength.

Question # 18

If an object moves with velocity of light the apparent mass of the object as compared to list original mass is

Question # 19

One rem is equal to.

Question # 20

Which particle is removed by a photon.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The X-rays coming from a X-rays tube
A. Is monochromatic
B. Has all wavelengths smaller than a certain maximum wavelength
C. Has all wavelengths greater than a certain maximum wavelength
D. has all wavelengths minimum than a certain maximum wavelength
2 The total energy of an electron in an orbit around the nucleus is.
A. Zero
B. Unity
C. Infinity
D. Negative
3 Which of the following is the most commonly used regions of operations for a transistor.
A. Cut off
B. Saturation
C. Active
D. All of these
4 Why FET amplifiers are called voltage controlled devices.
A. Input is a current signal
B. Output is a current signal
C. Input is a voltage signal
D. Output is a voltage signal
5 The transition of inner shell electrons in heavy atoms gives rise to the emission of.
A. Low energy b-particle
B. High energy b-particle
C. High energy X- rays
D. High energy gama rays
6 The scientific theory concerning the coming into existence of universe.
A. Cosmology
B. Cosmogony
C. Cosmography
D. Cosmos
7 Which of the following configuration of BJTs gives both voltage gain and current gain.
A. common Base
B. Common Emtter
C. Common collector
D. All of the above
8 The exitance of more than one distinct state with the same energy is called.
A. Exigency
B. Degeneracy
C. Normally
D. Emergency
9 The wavelength of X-rays is of the ofder of.
A. 10-14 m
B. 10-10 m
C. 10-9 m
D. 10-6 m
10 LED is a p-n junction that emits
A. Visible light
B. X- rays
C. Ultraviolet light
D. electromagnetic waves

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