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

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

Question # 2

Marie Curie and Pierre Curie discovered two new radioactive elements which are.

Question # 3

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

Question # 4

If an object moves with velocity of light the apparent length of the object moving the direction of motion becomes.

Question # 5

Transistor stands for

Question # 6

According to Max. Planck, energy is released or absorbed in discrete packets called.

Question # 7

The wavelength of Lyman series for hydrogen spectrum lies in the.

Question # 8

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

Question # 9

In radiotherapy X-rays are used to.

Question # 10

X-rays are also used for

Question # 11

One particle having zero mass and zero charge is.

Question # 12

the alpha particle does not travel for enough in air.

Question # 13

A darling ion amplifier is characterized by

Question # 14

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

Question # 15

X-rays are not used in RADARs because

Question # 16

When light of particular frequency is allowed to fall upon a metal surface electrons are emitted from a these emitted electrons are called.

Question # 17

A perfect back body

Question # 18

The Beta particles move along.

Question # 19

The ionization energy for hydrogen atom is

Question # 20

Radioactive decay series can be represents on

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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 If an object moves with velocity of light the apparent mass of the object as compared to list original mass is
A. greater
B. Smaller
C. Same
D. zero
3 X-rays are
A. Longitudinal wave
B. Transvers waves
C. Secondary waves
D. Fast sound waves
4 The tunnel effect makes possible
A. Alpha decay
B. Gama rays
C. Positive Beta decay
D. negative Beta dacay
5 Critical mass is the minimum mass needed for
A. Fusion
B. H-Bomb
C. Chain reaction
D. Binding energy
6 Which of the following is its own anti particle.
A. Photon
B. Electron
C. Proton
D. positron
7 Alpha particles are
A. Helium nuclei
B. sodium nuclei
C. Ioized nuclei
D. Hydrogen nuclei
8 Compton scattering experiment seemed to indicate that radiation had
A. Wave nature
B. Particle nature
C. Wave particle nature
D. X-rays nature
9 A transistor can be used as
A. Oscillator
B. Amplifier
C. Switch
D. Both a and c
10 Current gain of a CE amplifier is 50, ITS hfe is about
A. 25
B. 50
C. 75
D. 100

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