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 division and germier experiment relates to

Question # 2

Which of the following can be used as an arrester in a nuclear reactor.

Question # 3

An Alpha particle is the same as

Question # 4

Which one of the following has maximum frequency.

Question # 5

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

Question # 6

Tracer techniques make use of.

Question # 7

During the alpha decay process

Question # 8

Choose the one which acts as single inverter.

Question # 9

Which of the following is not a mode of radioactive decay

Question # 10

The nucleus of tritium is called.

Question # 11

The necessary condition for nuclear fusion is.

Question # 12

Which of the following are particle accelerators.

Question # 13

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

Question # 14

In an electronic transition atom cannot emit

Question # 15

The maximum K.E. with which photoelectrons are emitted depends very strongly on the.

Question # 16

Phenomenon of radioactivity is due to disintegration of.

Question # 17

The photons emitted in inner shell transition are.

Question # 18

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

Question # 19

X-ray are

Question # 20

In CE amplifier phased reversal occurs when the output voltage is taken between

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The number of electrons in U nucleus are.
A. 92
B. 235
C. zero
D. 143
2 What will be excitation energy in the third orbit of hydrogen atom.
A. 0.66 eV
B. 0.85 eV
C. 1.5 eV
D. 5.4 eV
3 The helium nucleus does not contain
A. Two electrons
B. Two neutrons
C. Two protons
D. Six nucleons
4 A transistor can be used as
A. Oscillator
B. Amplifier
C. Switch
D. Both a and c
5 The SI unit of decay constant is.
A. m
B. m-1
C. s-1
D. N m-1
6 In scattering experiment which force scatters alpha particle.
A. Nuclear force
B. Coulomb's force
C. Gravitational force
D. Centripetal force
7 The ionization potential of hydrogen atom is.
A. 10.2 V
B. 13.6 V
C. 12.97 V
D. 27.2 V
8 The two elements with same number of electrons but different mass number are called.
A. Isotones
B. Isobars
C. Isotopes
D. Isomers
9 x-rays cannot produce
A. Photoelectron
B. Compton electron
C. Electron positron pair
D. All of these
10 The capture of neutron by a proton results in the formation of.
A. Deuteron and gama rays
B. Deuteron and alpha particle
C. Triton and Beta particles
D. Tritron and X rays

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