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 reciprocal of decay constant lamda of a radioactive substances is equal to.	A. total life B. Half life C. Mean life D. Curie
2	X-rays travel with	A. The speed of light B. The speed of sound C. The speed of 3,000 m s-1 D. The speed of 3,500 m s-1
3	Current gain of a CE amplifier is 50, ITS hfe is about	A. 25 B. 50 C. 75 D. 100
4	In a photocell, certain metals emit electrons for	A. Visible light B. X-rays C. Infrared light D. Ultraviolet light
5	The best shield against Gama rays would be of	A. Heavy water B. Aluminium C. Iron D. Lead
6	How many terminals does a BJT have.	A. 1 B. 2 C. 3 D. 4
7	A gama ray of energy 1900 MeV is absorbed by	A. Proton antiproton pair B. Electron positron pair C. Producing heat in the substance D. The orbit
8	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
9	Beta decay may occur by	A. Beta minus B. Beta Plus C. Electron capture D. All of these
10	The relationship between mass number atomic number and neutron number is.	A. A = Z + N B. A = Z - N C. Z = A + N D. N = Z - A

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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

In fission reaction, heavy water is used as a

Which experiment is a demonstration that matter and energy can display properties of both waves and particles.

Critical mass is the minimum mass needed for

Both xenon and cesium each have

X-rays are not used in RADARs because

The division and germier experiment relates to

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

Mosley's law establishes the X-rays fluorescence of target element with is.

LASER is a device which can produce.

The maximum K.E. with which photoelectrons are emitted depends very strongly on the.

Which of the following is not an electromagnetic wave.

the gain of an amplifier is independent of

An emitter follower has

What is the overall gain, if three amplifiers each with a gain of 30 are cacaded.

The radius of second orbit of hydrogen atom is

Which of the following has greatest binding energy per nucleon.

the alpha particle does not travel for enough in air.

Which one of the following is a neutron absorber

Alpha particles emitted from a radioactive material are.

Which configuration is used to connect high impedance source to a low impedance lead.

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

Set 1

Set 2

Set 3

Set 4

Set 5

Set 6

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

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PPSC Physics Chapter 7 Important MCQ's

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