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	Why hydrogen atom does not emit x-rays.	A. its size is very small B. It contains only single electron C. In it energy levels are for apart D. In it energy levels are close to each other
2	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
3	The transition of inner shell electrons in heavy atoms gives rise to the emission of.	A. Low energy b-particle B. High energy b-particle C. High energy X- rays D. High energy gama rays
4	In annitilation of matter, positron and electron pair disappears into two	A. Alpha particles B. Beta particles C. Game particles D. X-rays
5	Alpha particles emitted from a radioactive material are.	A. He nucliei B. H -nucliei C. Li nucliei D. B nucliei
6	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
7	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
8	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
9	Which of the following describes that the time interval between two events may be different in different of references	A. Simullaneously B. Time dilation C. Length contraction D. Mass variation
10	The SI unit of equivalent dose is	A. Seivert B. Gray C. Radian D. Rem

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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

the gain of an amplifier is independent of

The electrons behave as wave because.

If an object moves with velocity of light the apparent mass of the object as compared to list original mass is

Two electrons approach each other their relative velocity will be.

The loss of mass in a.m.u in a nuclear change can be calculated from energy involved in MeV by

When Photon incident on a metal produce the emission of electrons the process is called.

Which particle interact via all fundamental forces.

The half life of a radioactive substance is 6 years What is the time taken by 12 g of this substance to decay completely.

In a nuclear reactor chani reaction is controlled by introducing.

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

The exitance of more than one distinct state with the same energy is called.

How many types of quarks were suggested i 1964 quark theory.

LASER is a device which can produce.

The two elements with same number of electrons but different mass number are called.

Which of the following can be used as an arrester in a nuclear reactor.

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

At high temperature a body generally emits redactions of.

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

Which particle has zero charge and zero rest mass.

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

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

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PPSC Physics Chapter 7 Important MCQ's

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