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.

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PPSC Physics Chapter 7 Important MCQ's

Sr.#	Question	Answer
1	The emission of photons by a metal when electrons are incident is called.	A. Photo electric effect B. Pair production C. X-rays production D. Gama ray production
2	In a Nuclear reactor which material is often used as modeerator.	A. Water B. Graphite C. Uranium D. Water and graphite
3	The Compton effect in X-rays proves that	A. Electrons have wave property B. x-rays have wave properly C. X-rays have particle characteristics D. Electrons cannot exist
4	Atomic reactor is based on	A. Controlled chain reaction B. Uncontrolledly chain reaction C. Nuclear fission D. Nuclear fusion
5	LED is a p-n junction that emits	A. Visible light B. X- rays C. Ultraviolet light D. electromagnetic waves
6	The chemical behavior of an atom is determined by	A. Mass number B. Number of Isotopes C. Atomic number D. Binding energy
7	Usually in an operational amplifier the inputs used are of	A. Equal voltage and same polarity B. Equal voltage and opposite polarity C. Different voltage and same polarity D. Different voltage and opposite polarity
8	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
9	The input resistance of a JFET is of the order of.	A. 1 M Mega B. 10 M Mega C. 100 M Mega D. 1,000 M Mega
10	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

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PPSC Physics Topic 7 MCQ Test With Answer

MCQ's Test For PPSC Physics Topic 7 Modern Physics

PPSC Physics Topic 7 Modern Physics

Besides U 235 what else is needed for making as atomic bomb.

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

A photon is chasing an electron, whose speed is 0.9 c What is their relative speed.

The Beta particles move along.

From which radiation it is most difficult to protect oneslelf.

A logic circuit with one input and one output that inverts the input signal at the output is.

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

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

The unit Planck's constant is equivalent to that of.

The path of Gama rays in Wilson cloud chamber is

In a cloud chamber the Alpha particles leave

Choose the one which acts as single inverter.

The electrons behave as waves, because they can .

Which of the following has the highest relative biological effectiveness or the quality factor.

Cs - 137 is a radioisotope used ot determine the thickness of the walls of steel pipes Cs 137 is chosen because it emits

The strength of photo electric current depends upon.

Which of the following propagates at the same speed as velocity of light.

Current gain of a CE amplifier is 50, ITS hfe is about

In order to reduce uncertainty in momentum one must use light of.

The SI unit of radioactivity is.

Prepare Complete Set Wise PPSC Physics Topic 7 Modern Physics MCQs Online With Answers

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Set 7

Set 8

Set 9

Set 10

Set 11

Set 12

Set 13

Set 14

Set 15

Set 16

Set 17

Set 18

Set 19

Set 20

Set 21

Topic Test

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PPSC Physics Chapter 7 Important MCQ's

Test Questions

Share your comments & questions here

Besides U ²³⁵ what else is needed for making as atomic bomb.