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	Bohr's atomic model assumes	A. Nucleus is of infinite mass and is at rest B. electron in a quantized orbit will not radiate energy C. Mass of electron remains the same D. All of the above
2	For the normal operation of transistor the emitter base junction is always.	A. Zero biased B. Reverse biased C. Forward bised D. Both a and b
3	Which quantity remains fixed in isobars.	A. Mass number B. Atomic number C. Number of neutrons D. Number of protons
4	The Rutherford atom according to classical theory is	A. Stable B. Unstable C. Partially stable D. Quantized
5	An increase in frequency above threshold frequency results in.	A. Increase in photo electric current B. Increase in K.E. of electrons C. Decrease in photoelectric current D. Decreases in K.E. of electrons
6	During transition, atom cannot emit	A. Visible light B. Ultraviolet radiation C. Infrared radiations D. gama rays
7	Radius of the Bother's orbit is r the radius of second orbit will be.	A. 2 r B. 3 r C. 4 r D. 8 r
8	The converse of pair production is	A. Annihilation of matter B. Materialization C. Compton effect D. Photo electric effect
9	The number of electrons in U nucleus are.	A. 92 B. 235 C. zero D. 143
10	The advantage of electron tube over a transistor is.	A. Its high efficiency B. Its high gain C. Low consumption of power D. Low input impedance

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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

When a posirtron is emitted it causes.

Nuclear force as compared to electrostatic force is.

The term used for the emission of electrons when light strikes a surface.

The unit of Rydberg constant R is

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

Which type of amplifier causes minimum drain of power supply.

The advantage of electron tube over semiconductor is.

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

The critical mass of fissionable uranium -235 can be reduced by

A gama ray of energy 1900 MeV is absorbed by

In the fusion process, there are

The photons emitted in inner shell transition are.

Which Isotopes is use din radioactive dating.

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

On which factor cut off wavelength of X-rays coming from a Coolidge tube depends upon.

Which of the following phenomenon is explained by the tunnel efffect.

The mass of an helium nucleus is equal to.

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

When we pass a radiation from a radioactive material through an electric field.

At room temperature the potential difference between the two sides of depletion region for silicon is of the order of.

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

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Set 7

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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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