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 minimum amount of energy in an individual electron has to gain to escape from a particular surface is called.

Question # 2

The Compton effect in X-rays proves that

Question # 3

An emitter follower has

Question # 4

Though the wavelength of X-rays is smaller than that of visible light yet the speed of X-rays in vacuum is.

Question # 5

What is the scale for measurement of Banbridge mass spectrograph.

Question # 6

The loss of mass in a.m.u in a nuclear change can be calculated from energy involved in MeV by

Question # 7

The hyperfine lines in the spectrum relates to

Question # 8

When of the following radiations are not emitted by electron transitions in atoms.

Question # 9

Radius of the Bother's orbit is r the radius of second orbit will be.

Question # 10

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

Question # 11

Beta decay may occur by

Question # 12

A deuteron is

Question # 13

Radioactivity is the phenomenon associated with the.

Question # 14

A transistor can be used as

Question # 15

A darling ion amplifier is characterized by

Question # 16

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

Question # 17

The energy equivalent of 1 kg of matter a

Question # 18

In de Brogile model electron orbit must form

Question # 19

The charge on a helium nucleus is equal to the charge of.

Question # 20

Emitter follower amplifier is an example of.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Which of the following is not an electromagnetic wave.
A. game rays
B. Ultraviolet rays
C. Ultrasonic waves
D. Microwaves
2 Why is a capacitor resistor combination used in oscillators in grid circuit.
A. To generate oscillation
B. To bias the grid automatically
C. To amplify oscillations
D. To sustain the oscillations.
3 The nucleus of tritium is called.
A. Proton
B. Triton
C. Deuleron
D. Positron
4 Though the wavelength of X-rays is smaller than that of visible light yet the speed of X-rays in vacuum is.
A. longer that that of visible light
B. Smaller than that of visible light
C. Same as that of visible light
D. Unpredictable
5 the gain of an amplifier is independent of
A. The two externally connected resistances
B. What is happening inside the amplifier
C. Internal structure of the amplifier
D. All of the above
6 In a Geiger Marsden experiment why do the great majority of the Alpha particles pass straight through the metal foil.
A. Atomic nuclei may contain neutrons
B. Atoms are electrically neutral
C. Atoms are largely empty space
D. Atoms have positively charged nuclei
7 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
8 Which of the following atom pair have the same structure.
A. N, C
B. B, Li
C. H2 , Ne
D. Li , Na
9 The path of Gama rays in Wilson cloud chamber is
A. Irregular
B. Dense and straight
C. Thin and continuous
D. Thin and discontinuous
10 Beta decay may occur by
A. Beta minus
B. Beta Plus
C. Electron capture
D. All of these

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