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

00:00
Question # 1

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

Question # 2

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

Question # 3

In the fusion process, there are

Question # 4

At room temperature the potential difference between the two sides of depletion region for silicon is of the order of.

Question # 5

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

Question # 6

Deuterium is

Question # 7

Nuclear force exists between

Question # 8

In Compton's effect it was considered that X-rays consist of

Question # 9

The number of electrons in U nucleus are.

Question # 10

The resistance between(+) and (-) inputs of an amplifier is.

Question # 11

LED is a p-n junction that emits

Question # 12

In Compton's effect the change in wavelength of a scattered photon is called.

Question # 13

The rest mass of a particle is independent of the

Question # 14

Mass -energy relation means that the product of mass times the square of the speed of light must be equal to.

Question # 15

The hyperfine lines in the spectrum relates to

Question # 16

Which one of the following is a convenient energy unit to express the energy of sub atomic particles.

Question # 17

LASER beam my be measure very large distance because it is.

Question # 18

the gain of an amplifier is independent of

Question # 19

Among different elements of the periodic table which of the following atoms is the simplest.

Question # 20

Which of the following wavelength lies in X-rays region.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The force that bonds protons and neutrons together int he nucleus despite the electrical repulsion of the protons is called.
A. Molecular force
B. Nuclear force
C. Atomic force
D. Gravitational force
2 The input exultation for a JFET is
A. Current signal
B. Voltage signal
C. Voltage and current signals
D. Neither voltage nor current signal
3 In the experiment of production of X rays electrons are accelerated towards the anode by
A. Thermionic emission
B. Potential difference
C. Breaking potential
D. Cut of current
4 Which particles have spin quantum number 1/2
A. Mesons
B. Laptons
C. Hadrons
D. Muons
5 The phenomenon is which the wavelength of scattered X-rays is larger than the incident X-rays is known as.
A. Zeeman's effect
B. Photoelectric effect
C. Compton's effect
D. Annihilation of matter
6 In Compton's effect the change in wavelength of a scattered photon is called.
A. Angle of emergence
B. Angle of refraction
C. Angle of deviation
D. Compton shift
7 Which of the following detectors can count fast and operate at low voltage.
A. G.M Counter
B. Cloud chamber
C. Solid state detector
D. Bubble chamber
8 The part of theory of relativity which deals with accelerated bodies is called.
A. special theory of relativity
B. General theory of relativity
C. Lorentz's theory of relativity
D. Galilean theory of relativity
9 Compton scattering experiment seemed to indicate that radiation had
A. Wave nature
B. Particle nature
C. Wave particle nature
D. X-rays nature
10 In fission reaction, heavy water is used as a
A. Coolant
B. Moderator
C. Heat exchanger
D. Controller of reaction rate

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