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	For an electron or position the rest mass energy is equal to.	A. 0.21 MeV B. 0.51 MeV C. 1.51 MeV D. 1.21 MeV
2	The SI unit of equivalent dose is	A. Seivert B. Gray C. Radian D. Rem
3	Transistors with various combinations are widely used as switches in.	A. electric generators B. Rectificers C. Amplifiers D. Computers
4	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
5	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
6	Negative feedback	A. Increases stability B. Decreases stability C. Produces oscillatory D. Cannot occur
7	x-rays cannot produce	A. Photoelectron B. Compton electron C. Electron positron pair D. All of these
8	In Compton's effect the change in wavelength of a scattered photon is called.	A. Angle of emergence B. Angle of refraction C. Angle of deviation D. Compton shift
9	Which of the following propagates at the same speed as velocity of light.	A. Heat waves B. Sound waves C. Shock waves D. Beta particles
10	The path of electron in Rutherford atomic model according to classical theory a.	A. Parabolic B. Straight line C. Spiral D. Circular

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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

A unijunction transistor

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

Choose the one which acts as single inverter.

How positives feedback will effect an amplifier.

A perfect back body

In which reaction two or more small light nuclei nuclei come together or fuse to form a large nucleus.

An active component of an electronic circuit consisting of a small block of semiconducting material to which at least three electrical contacts are made is known as.

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

The value of open loop gain for the amplifier is

Usually in an operational amplifier the inputs used are of

Which of the following causes the deflection of Alpha particles when they re passed through a thin foil.

Alpha particles are

Cobalt -60 is a radioactive element with half life of 5.25 years. What fraction of the original sample will be left after 26 years.

The potential due to which an electron is lifted from gerund state to excited state is.

The average energy released per fission of U is about

The mass of proton is equal to.

Which of the following wavelength lies in X-rays region.

The number of electrons in U nucleus are.

What will be excitation energy in the third orbit of hydrogen atom.

The working of cloud chamber is based in the presence of.

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

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Set 2

Set 3

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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

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PPSC Physics Chapter 7 Important MCQ's

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