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 advantage of electron tube over a transistor is.

Question # 2

The energy equivalent of 1 kg of matter a

Question # 3

The SI unit of current gain is.

Question # 4

The SI unit of equivalent dose is

Question # 5

The mass defect of Bohr's atomic model is

Question # 6

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

Question # 7

The relationship between mass number atomic number and neutron number is.

Question # 8

The energy of neutrons obtained during a fission reaction is.

Question # 9

The half life of a radioactive substance depend on.

Question # 10

The bunding energy per nucleon for iron is.

Question # 11

Which given quantity remains the same in isotones.

Question # 12

x-rays cannot produce

Question # 13

In scattering experiment which force scatters alpha particle.

Question # 14

Which of the following properties is not exhibited by X-rays.

Question # 15

In a photocell, certain metals emit electrons for

Question # 16

One particle having zero mass and zero charge is.

Question # 17

The particles less in mass than protons are

Question # 18

In which of the following studies x-rays are not helpful.

Question # 19

As the mass number varies, which of the quantities does not change w.r.t nucleus.

Question # 20

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

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 At what speed the mass of a body will be doubled.
A. 0.67 C
B. 0.77 C
C. 0.87 C
D. 0.97 C
2 X-rays travel with
A. The speed of light
B. The speed of sound
C. The speed of 3,000 m s-1
D. The speed of 3,500 m s-1
3 What is the scale for measurement of Banbridge mass spectrograph.
A. Linear
B. Inverse
C. Exponential
D. Logarithmic
4 The converse of pair production is
A. Annihilation of matter
B. Materialization
C. Compton effect
D. Photo electric effect
5 The unit Planck's constant is equivalent to that of.
A. Energy
B. Force
C. Velocity
D. Angular momentum
6 The SI unit of current gain is.
A. Ampere
B. Ampere metre
C. Ampere volt
D. It has no unit
7 The energy in electron volts necessary to remove the most loosely bound electron from the neutral atom is known as.
A. Faraday energy
B. Wave number
C. Ionization Potential
D. Excitation potential
8 Which one of the following spectra series is in the ultraviolet region.
A. Lyman series
B. Paschen series
C. Brackett series
D. Plund series
9 Which of the following phenomenon is explained by the tunnel efffect.
A. Alpha decay
B. Beta decay
C. Gama decay
D. Radioactivity
10 In which of the following controlled nuclear chain reaction is used to liberate energy.
A. Nuclear bomb
B. Atomic bomb
C. Hydrogen bomb
D. Nuclear reactor

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