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

Try The 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 SI unit of absorbed dose in.

Question # 2

Alpha particles emitted from a radioactive material are.

Question # 3

The advantage of electron tube over a transistor is.

Question # 4

A perfect back body

Question # 5

The continuous X rays spectrum is due to an effect.

Question # 6

Which given quantity remains the same in isotones.

Question # 7

The ionization potential of hydrogen atom is.

Question # 8

Alpha particles are used for the treatment of skin of a patient due to.

Question # 9

X-rays spectrum may be

Question # 10

The electrons behave as waves, because they can .

Question # 11

X-rays are absorbed maximum by

Question # 12

The converse of pair production is

Question # 13

Which one of the following quantities is conserved in a nuclear reactor.

Question # 14

One particle having zero mass and zero charge is.

Question # 15

A transistor can be used as

Question # 16

Which of the following is not a mode of radioactive decay

Question # 17

Cosmic rays mostly comprise of

Question # 18

Which particle are not emitted by a radioactive substance.

Question # 19

Alpha particles are

Question # 20

Which particle has zero charge and zero rest mass.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Push pull amplifiers employ
A. One transistor
B. Two transistors
C. Three transistors
D. Four transistors
2 The working of cloud chamber is based in the presence of.
A. Super heated vapours
B. Liquid
C. Super saturated vapors
D. Unsaturated vapours
3 The helium nucleus does not contain
A. Two electrons
B. Two neutrons
C. Two protons
D. Six nucleons
4 The band width of an audio amplifier is.
A. 10 Hz to 10 kHz
B. 20 Hz to 54 Hz
C. 20 Hz to 20 kHz
D. 20 Hz to 60 kHz
5 The energy delivered to the tissue per unit mass is called the absorbed dose of.
A. X rays
B. gama rays
C. Radiation
D. energy
6 Which of the following has the highest relative biological effectiveness or the quality factor.
A. X rays and Gama rays
B. Electrons
C. Photons
D. Alpha particles
7 Phenomenon of radioactivity is due to disintegration of.
A. Proton
B. Neutron
C. electron
D. nucleus
8 What is the overall gain, if three amplifiers each with a gain of 30 are cacaded.
A. 30
B. 90
C. 270
D. 27,000
9 A body moves with velocity of 2 x 106 m s-1 its relativistic mass becomes
A. Zero
B. Unity
C. Double of its rest mass
D. Infinity
10 Choose the one which acts as single inverter.
A. Common emitter
B. common collector
C. Common base
D. Diode

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