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

An increase in frequency above threshold frequency results in.

Question # 2

Which of the following causes the deflection of Alpha particles when they re passed through a thin foil.

Question # 3

An important property of an ideal power supply is.

Question # 4

Alpha particles are

Question # 5

Which temperature is required for the fusion of two nuclides.

Question # 6

The energy in an electromagnetic wave is carried in the units called.

Question # 7

Push pull amplifiers employ

Question # 8

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

Question # 9

Why is a capacitor resistor combination used in oscillators in grid circuit.

Question # 10

Which one of the following is a neutron absorber

Question # 11

X-rays are good for imagining

Question # 12

A gama ray of energy 1900 MeV is absorbed by

Question # 13

In a transistor which one is very thin.

Question # 14

The maximum energy of emitted photoelectron is measured by

Question # 15

Transistor stands for

Question # 16

Which of the following is believed to be carrier o nuclear forces.

Question # 17

The half life of a radioactive element depends upon.

Question # 18

What is the quantitative description of the effect of radiation on the living tissue.

Question # 19

The hyperfine lines in the spectrum relates to

Question # 20

Half life and mean lifetime of a radioactive element are.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The most readily fissionable isotope of uranium has atomic mass of
A. 234
B. 235
C. 236
D. 238
2 Among different elements of the periodic table which of the following atoms is the simplest.
A. Carbon
B. Oxygen
C. Hydrogen
D. Nitrogen
3 The process of conversation of a photon into an electron and a position is called.
A. Pair annihilations
B. Pair production
C. Photoelectric effect
D. Compton effect
4 Phenomenon of radioactivity is due to disintegration of.
A. Proton
B. Neutron
C. electron
D. nucleus
5 As the mass number varies, which of the quantities does not change w.r.t nucleus.
A. Mass
B. Volume
C. Binding energy
D. Density
6 A photon is chasing an electron, whose speed is 0.9 c What is their relative speed.
A. 0.1 C
B. C
C. 0.8 C
D. 0.9 C
7 During the alpha decay process
A. A neutron is emitted
B. a electron is emitted
C. A helium core is emitted
D. A proton core is emitted
8 The constant lamda is called the.
A. Decay constant
B. Gas constant
C. Planck's constant
D. Dose constant
9 A CE amplifier with by passed emitter resistor is an example of.
A. Current series feedback
B. Voltage sires feed back
C. Current shunt feedback
D. Voltage shunt feed back
10 Deuterium is
A. A transuranic element
B. A type o cosmic particle
C. An isotope of hydrogen
D. An isotope of helium

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