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	Half life of a radioactive elements 10 minutes If the initial cont. rate is 368 counts per minute for what time count rate reaches 32 counts per minute.	A. 20 minutes B. 40 minutes C. 80 minutes D. 120 minutes
2	The SI unit of current gain is.	A. Ampere B. Ampere metre C. Ampere volt D. It has no unit
3	The process of energy generation in sun and stars is.	A. Fusion of heavy nuclei B. fusion of light nuclei C. Fission of light nuclei D. Solar panels
4	Radioactive substances do not emit	A. Alpha particles B. Beta particles C. Gama rays D. Neutrons
5	Which of the following are particle accelerators.	A. Cyclotrons B. Synchrotrons C. Linear accelerators D. All of the above
6	The maximum K.E. with which photoelectrons are emitted depends very strongly on the.	A. Intensity of incident light B. Electric field near the photocathode C. Frequency of incident light D. Polarization of incident light
7	Cs - 137 is a radioisotope used ot determine the thickness of the walls of steel pipes Cs 137 is chosen because it emits	A. Radiowaves B. Alpha particles C. Beta particles D. gama particles
8	One particle having zero mass and zero charge is.	A. Positron B. Electron C. Neutrino D. Neutron
9	LASER is a device which can produce.	A. Monochromatic beam of light B. Coherent beam of light C. An intense beam of light D. All of the above
10	Mean life of a radioactive sample is 100 s its half life will be	A. 0.693 s B. 1 s C. 6.93 s D. 69.3 s

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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.

A deuteron is

The possible values of principal quantum number are.

Matter waves

Why is a capacitor resistor combination used in oscillators in grid circuit.

The capture of neutron by a proton results in the formation of.

Critical mass is the minimum mass needed for

In potential for the material of cathode pure metals are rarely used because of their

The emission of Beta particle from protonium -218 results in the formation of.

Mass -energy relation means that the product of mass times the square of the speed of light must be equal to.

Cosmic rays mostly comprise of

The advantage of electron tube over a transistor is.

The critical mass of a fissionable material is.

Which uranium isotope having the atomic weights as given below is easily fissionable.

When a helium atom loses an electron it becomes.

The ionization energy for hydrogen atom is

The most suitable material for moderator in a nuclear reactor is.

The half life of uranium -238 is

In a Geiger Marsden experiment why do the great majority of the Alpha particles pass straight through the metal foil.

Which of the following is the most massive particle.

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

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Set 11

Set 12

Set 13

Set 14

Set 15

Set 16

Set 17

Set 18

Set 19

Set 20

Set 21

Topic Test

Top Scorers Of PPSC Physics Topic 7 Modern Physics MCQ`s Test

PPSC Physics Chapter 7 Important MCQ's

Test Questions

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