PPSC Physics Chapter 7 online mcq test with answers for chapter 7 (Modern Physics)

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.

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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.

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Online MCQ`s Test For Chapter 7 "PPSC Physics Chapter 7 Modern Physics"

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PPSC Physics Chapter 7 Modern Physics

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Question # 1

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

Graphite A
heavy water B
Uranium C
Cadmium D

Question # 2

In the Geiger Marsden experiment a narrow beam of alpha particles was fired at a thin piece of Gold foil in a vacuum Some of the particles were scattered though large angles The result of the experiment provided evidence for the existence of.

A very small charged nucleus A
electrons orbiting the nucleus B
Neutrons in the nucleus C
Nuclear reaction D

Question # 3

For an electron or position the rest mass energy is equal to.

0.21 MeV A
0.51 MeV B
1.51 MeV C
1.21 MeV D

Question # 4

X-rays are not used in RADARs because

They are not reflected by the target A
they are not completely absorbed by air B
They damage the target C
They are reflected by the target D

Question # 5

The mass of an alpha particle is.

2 u A
4 u B
6 u C
8 u D

Question # 6

How much large is the proton mass than the electron mass.

1536 A
1636 B
1736 C
1836 D

Question # 7

The bunding energy per nucleon for iron is.

zero A
Maximum B
Negative C
Minimum D

Question # 8

The half life of a radioactive substance as compared to its mean lif eis.

30% A
50% B
70% C
90% D

Question # 9

Which quantity remains fixed in isobars.

Mass number A
Atomic number B
Number of neutrons C
Number of protons D

Question # 10

X-ray are

Streams of negatively charted particles. A
Electromagnetic wave B
Streams of positively charged particles C
Visible light D

Question # 11

In n-p-n transistor the current flows in the direction from

Emitter to base A
emitter to collector B
Base to emitter C
Base to collector D

Question # 12

The SI unit of decay constant is.

m A
m-1 B
s-1 C
N m-1 D

Question # 13

A logic circuit whose output signal is '1' when inputs are different is.

NAND gate A
NOR gate B
Exclusive OR gate C
Exclusive NOR gate D

Question # 14

Transistor stands for

Transfer of resistance A
Transfer of current B
Transfer of power C
Transfer of voltage D

Question # 15

Which one of the following has the largest wavelength.

x rays A
Infrared rays B
Visible light C
Radio waves D

Question # 16

In the experiment of production of X rays electrons are accelerated towards the anode by

Thermionic emission A
Potential difference B
Breaking potential C
Cut of current D

Question # 17

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

25 A
50 B
75 C
100 D

Question # 18

What is the energy equivalent to amu in Me V

0.931 MeV A
9.31 MeV B
93.1 MeV C
931 MeV D

Question # 19

The result of the alpha particle scattering experiment gave evidence for which of the following.

Nuclear fusion A
Radio active decay B
Existence of isotopes C
Nuclear atom D

Question # 20

When objects placed in a room are exposed to X- rays they appear

Violet A
Visible B
Red C
Invisible D

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Physics

7th Chapter

PPSC Physics Chapter 7 Test

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PPSC Physics Chapter 7 MCQ Test With Answer for Physics chapter 7 (Modern Physics)

PPSC Subjects

Online MCQ`s Test For Chapter 7 "PPSC Physics Chapter 7 Modern Physics"

PPSC Physics Chapter 7 Modern Physics

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

In the Geiger Marsden experiment a narrow beam of alpha particles was fired at a thin piece of Gold foil in a vacuum Some of the particles were scattered though large angles The result of the experiment provided evidence for the existence of.

For an electron or position the rest mass energy is equal to.

X-rays are not used in RADARs because

The mass of an alpha particle is.

How much large is the proton mass than the electron mass.

The bunding energy per nucleon for iron is.

The half life of a radioactive substance as compared to its mean lif eis.

Which quantity remains fixed in isobars.

X-ray are

In n-p-n transistor the current flows in the direction from

The SI unit of decay constant is.

A logic circuit whose output signal is '1' when inputs are different is.

Transistor stands for

Which one of the following has the largest wavelength.

In the experiment of production of X rays electrons are accelerated towards the anode by

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

What is the energy equivalent to amu in Me V

The result of the alpha particle scattering experiment gave evidence for which of the following.

When objects placed in a room are exposed to X- rays they appear

Prepare Complete Setwise Chapter 7 "PPSC Physics Chapter 7 Modern Physics" MCQs Online With Answers

Set 1

Set 2

Set 3

Set 4

Set 5

Set 6

Set 7

Set 8

Set 9

Set 10

Set 11

Set 12

Set 13

Set 14

Set 15

Set 16

Set 17

Set 18

Set 19

Set 20

Set 21

PPSC Physics Chapter 7 Test

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