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 half life of a radioactive substance is 6 years What is the time taken by 12 g of this substance to decay completely.	A. 12 years B. 24 years C. 48 years D. infinity
2	Atomic reactor is based on	A. Controlled chain reaction B. Uncontrolledly chain reaction C. Nuclear fission D. Nuclear fusion
3	Mass -energy relation means that the product of mass times the square of the speed of light must be equal to.	A. Torque B. Momentum C. Energy D. Impulse
4	On which factor cut off wavelength of X-rays coming from a Coolidge tube depends upon.	A. Target material B. Accelerating voltage C. Filament temperature D. Separation between target and the filament
5	Which of the following causes the deflection of Alpha particles when they re passed through a thin foil.	A. Attraction of nucleus B. Collision with nuclei C. Interactions with electrons D. Electrostatic repulsion by the nucleus
6	the wavelength of continuous X-rays is inversely proportional to.	A. Intensity of incident electron beam B. Temperature of the target C. Intensity of X-rays D. The energy of electrons striking the target
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	Which of the following is the most commonly used regions of operations for a transistor.	A. Cut off B. Saturation C. Active D. All of these
9	The bunding energy per nucleon for iron is.	A. zero B. Maximum C. Negative D. Minimum
10	Which particle interact via all fundamental forces.	A. Leptons B. Hadrons C. Muons D. mesons

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

The transition of inner shell electrons in heavy atoms gives rise to the emission of.

For the normal operation of transistor the emitter base junction is always.

The value of open loop gain for the amplifier is

The critical mass of a fission reaction is.

The gama rays have

A CE amplifier with by passed emitter resistor is an example of.

The bunding energy per nucleon for iron is.

The advantage of electron tube over a transistor is.

In annitilation of matter, positron and electron pair disappears into two

Mean life of a radioactive sample is 100 s its half life will be

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

Which of the following is formed by decay of a free neurton.

Which of the following detectors can count fast and operate at low voltage.

Which of the following radiations can penetrate 20 cm thick steel.

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

Though the wavelength of X-rays is smaller than that of visible light yet the speed of X-rays in vacuum is.

The decay to form other nuclides by emitting particles and electromagnetic radiations by unstable nuclides is called.

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

Which of the following has the highest relative biological effectiveness or the quality factor.

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

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.