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 two elements with same number of electrons but different mass number are called.

Question # 2

A unijunction transistor

Question # 3

What is the relativistic version of the Schrodinger equation.

Question # 4

How many terminals does a BJT have.

Question # 5

The most suitable material for moderator in a nuclear reactor is.

Question # 6

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

Question # 7

What do we study by crystallography.

Question # 8

The scientific theory concerning the coming into existence of universe.

Question # 9

Radio carbon in the atmosphere is produced by the bombardment of.

Question # 10

The path of electron in Rutherford atomic model according to classical theory a.

Question # 11

Particle which can be added to the nucleus of an atom with changing its chemical properties are called.

Question # 12

Which of the following is not an electromagnetic wave.

Question # 13

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

Question # 14

Which one of the following has maximum frequency.

Question # 15

There are how many types of forces or interactions.

Question # 16

In a resistor, when base width decreases with increasing Vbc, this phenomenon is called.

Question # 17

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.

Question # 18

Which circuit elements has two stable states and can be used to store information.

Question # 19

The photons emitted in inner shell transition are.

Question # 20

The process of conversation of a photon into an electron and a position is called.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 During transition, atom cannot emit
A. Visible light
B. Ultraviolet radiation
C. Infrared radiations
D. gama rays
2 The binding energy per nucleon for uranium is about.
A. 7.7 MeV
B. 9.6 MeV
C. 13.6 MeV
D. 21.6 MeV
3 The radius of first Bohr's orbit for hydrogen atom is.
A. 0.53 m
B. 0.53 nm
C. 0.053 nm
D. 0.53 mm
4 In de Brogile model electron orbit must form
A. Spectrum
B. Wave packets
C. Franhoffer lines
D. Clouds
5 A newly prepared radioactive nuclide has a decay constant Lamda of 10-6 s-1 What is the approximate half life of the nuclide.
A. 1 hour
B. 1 day
C. 1 week
D. 1 month
6 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
7 Which configuration is used to connect high impedance source to a low impedance lead.
A. CE
B. CB
C. CC
D. BE
8 An example of continuous spectrum is.
A. Black body radiation spectrum
B. Molecular spectra
C. Atomic spectra
D. All of the above
9 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
10 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

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