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 Isotopes is use din radioactive dating.

Question # 2

The SI unit of current gain is.

Question # 3

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

Question # 4

The nucleus of tritium is called.

Question # 5

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

Question # 6

An important property of an ideal power supply is.

Question # 7

In fission reaction, heavy water is used as a

Question # 8

X-rays are good for imagining

Question # 9

The unit generally used for measuring astronomical distances is.

Question # 10

A slow neutron can cause fission in

Question # 11

The tunnel effect makes possible

Question # 12

The particles equal in mass or greater than protons are called.

Question # 13

An oscillator is basically an amplifier with loop gain

Question # 14

Neither the position nor the momentum of a particle can be predicted with arbitrarily great precision is the statement of.

Question # 15

Which of the following is not an electromagnetic wave.

Question # 16

Cosmic rays mostly comprise of

Question # 17

LASER is a device which can produce.

Question # 18

When a platinum wire is heated of 1600 oC, it becomes

Question # 19

What is the relativistic version of the Schrodinger equation.

Question # 20

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

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 During the alpha decay process
A. A neutron is emitted
B. a electron is emitted
C. A helium core is emitted
D. A proton core is emitted
3 The binding energy to pull the deuterium H apart into a proton and a neutron is equal to.
A. 1.22 MeV
B. 2.22 MeV
C. 3.22 Mev
D. 4.22 MeV
4 An Alpha particle is the same as
A. A helium nucleus
B. A high speed electron
C. A hydrogen nucleus
D. Electromagnetic radiation of short wavelength
5 When a beta particle travels though a medium it knocks out electrons from the atoms due to.
A. Gravitational force of attraction
B. Electrostatic force of repulsion
C. Nuclear force
D. Electromagnetic induction
6 A darling ion amplifier is characterized by
A. High voltage and current gain
B. High input resistance and current gain
C. High output resistant and current gain
D. Low input resistance and current gain
7 Which six particles and their antiparticles interact by the weak interaction.
A. Leptons
B. Hadrons
C. Muons
D. pi mesons
8 The mass defect of Bohr's atomic model is
A. Exclusion of nuclear motion
B. missing of classical and quantum theories
C. Failed to explain the fine structure of spectral line
D. All of the above
9 As the mass number increases, the binding energy per nucleon in a nucleus
A. Increases
B. Decreases
C. Remain constant
D. Varies in a way that depends upon A
10 The minimum amount of energy in an individual electron has to gain to escape from a particular surface is called.
A. Threshold frequency
B. work function
C. Wave number
D. Kinetic energy

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