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

Ebers-Moll model describes the working of a

Question # 2

Which of the following is required for maintaining sustained chain reaction.

Question # 3

Which both elements are good for nuclear fission.

Question # 4

The chemical behavior of an atom is determined by

Question # 5

Which of the following is invariant under Galilean transformation.

Question # 6

The Inner electrons in heavy atoms can be disturbed and dislodged by.

Question # 7

Which of the following particles leave no trail in a cloud chamber.

Question # 8

In heavy elements of the periodic table the number of neutrons than protons are.

Question # 9

The ionization potential of hydrogen atom is.

Question # 10

The electrons behave as wave because.

Question # 11

Two electrons approach each other their relative velocity will be.

Question # 12

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

Question # 13

When a beta particle travels though a medium it knocks out electrons from the atoms due to.

Question # 14

Special theory of relativity deals with the events in the frames of reference which move with constant.

Question # 15

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

Question # 16

The half life of uranium -238 is

Question # 17

Work function is generally expressed in.

Question # 18

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

Question # 19

Radioactive substances do not emit

Question # 20

If the base emitter junction is forward biased and base collector junction is reverse biased the BJT is in.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Emitter follower amplifier is an example of.
A. Current series feedback
B. Voltage series feedback
C. Current shunt feed back
D. Voltage shunt feedback
2 When Photon incident on a metal produce the emission of electrons the process is called.
A. Photo electric effect
B. Pair production
C. x-rays production
D. Gama ray production
3 The decimal equivalent of 1111 is
A. 5
B. 10
C. 15
D. 120
4 Among different elements of the periodic table which of the following atoms is the simplest.
A. Carbon
B. Oxygen
C. Hydrogen
D. Nitrogen
5 The ionization energy for hydrogen atom is
A. -11.6 eV
B. -12.6 eV
C. -13.6 eV
D. -19.6 eV
6 Which type of radiation would be stopped completely by a thin piece of cardboard.
A. Alpha particles
B. Beta particles
C. Gama rays
D. X -rays
7 Two electrons approach each other their relative velocity will be.
A. Zero
B. c
C. c/2
D. Infinity
8 Which one among these contacts in a transistor is non rectifying.
A. Base
B. Emitter
C. Collector
D. None of these
9 In a resistor, when base width decreases with increasing Vbc, this phenomenon is called.
A. Tunneling
B. Thermal runway
C. Pinch off
D. Early effect
10 The potential due to which an electron is lifted from gerund state to excited state is.
A. Potential gradient
B. excitation potential
C. Ionization potential
D. Potential difference

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