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

Which given quantity remains the same in isotones.

Question # 2

The SI unit of current gain is.

Question # 3

The emission of electrons from a metal surface when exposed to light of suitable frequency is called.

Question # 4

Emitter follower amplifier is an example of.

Question # 5

Which type of radiation would be stopped completely by a thin piece of cardboard.

Question # 6

The reciprocal of decay constant lamda of a radioactive substances is equal to.

Question # 7

Which of the following circuits is used as local oscillator in radio receivers.

Question # 8

The SI unit of absorbed dose in.

Question # 9

The energy in electron volts necessary to remove the most loosely bound electron from the neutral atom is known as.

Question # 10

The average energy released per fission of U is about

Question # 11

The possible values of principal quantum number are.

Question # 12

What are isotopes.

Question # 13

The half life of radium -226 is

Question # 14

Why FET amplifiers are called voltage controlled devices.

Question # 15

Transistor stands for

Question # 16

Lines of Balmer series are emitted by hydrogen atom when the electron jumps from

Question # 17

Low frequency response of an amplifier is mainly limited by.

Question # 18

Which particle are not emitted by a radioactive substance.

Question # 19

Mean life of a radioactive sample is 100 s its half life will be

Question # 20

The photons emitted in inner shell transition are.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Which of the following phenomenon is observed in obtaining an X ray photograph of our hand.
A. Photoelectric effect
B. Zeeman effect
C. Shadow photography
D. Ionization
2 How many terminals does a BJT have.
A. 1
B. 2
C. 3
D. 4
3 The electrons behave as wave because.
A. They can be diffracted by a crystal
B. They can be defecting by magnetic field
C. They can be deflecting by electric field
D. they can produce ions in gases
4 The energy that must be added to separate the nucleus is called.
A. Critical energy
B. Binding energy
C. Gravitational energy
D. Electrostatic energy
5 The rest mass of a particle is independent of the
A. Wavelength of the particle
B. Mass of the particle
C. Speed of the particle
D. Energy of the particle
6 What are isotopes.
A. Atoms of the same element with different numbers of neutrons.
B. Atoms of the same element with different numbers of protons.
C. Atoms which are radioactive
D. Atoms which have gained or lost an electron
7 An AND gate is.
A. Equivalent to a series switching circuit.
B. Equivalent to a parallel switching circuit
C. Equivalent ot universal gate
D. A reciprocal of NAND gate
8 Which particle are not emitted by a radioactive substance.
A. Alpha particles
B. Beta particles
C. Gama particles
D. Neutrons
9 An example of continuous spectrum is.
A. Black body radiation spectrum
B. Molecular spectra
C. Atomic spectra
D. All of the above
10 The result of the alpha particle scattering experiment gave evidence for which of the following.
A. Nuclear fusion
B. Radio active decay
C. Existence of isotopes
D. Nuclear atom

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