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	Though the wavelength of X-rays is smaller than that of visible light yet the speed of X-rays in vacuum is.	A. longer that that of visible light B. Smaller than that of visible light C. Same as that of visible light D. Unpredictable
2	Which of the following phenomenon is observed in obtaining an X ray photograph of our hand.	A. Photoelectric effect B. Zeeman effect C. Shadow photography D. Ionization
3	What do we study by crystallography.	A. The analysis of X ray spectra of elements and study of crystal structure. B. Visible spectra of sources and crystal study C. Ultraviolet spectra of sources and crystal study D. Characteristics of X-rays
4	The working of cloud chamber is based in the presence of.	A. Super heated vapours B. Liquid C. Super saturated vapors D. Unsaturated vapours
5	If an object moves with velocity of light the apparent length of the object moving the direction of motion becomes.	A. Larger B. Smaller C. Zero D. Infinity
6	Hydrogen bomb is based on	A. Controlled chain reaction B. Uncontrolled chain reaction C. Nuclear fusion D. Nuclear fission
7	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
8	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
9	How positives feedback will effect an amplifier.	A. Increases the voltage gain B. Decreases the voltage gain C. Imitates oscillation to occur D. Damaged it
10	X-rays are	A. Longitudinal wave B. Transvers waves C. Secondary waves D. Fast sound waves

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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 chemical behavior of an atom is determined by

Nuclear force as compared to electrostatic force is.

When a platinum wire is heated of 1600 oC, it becomes

A single quantum of electromagnetic radiation is termed as.

Alpha particles emitted from a radioactive material are.

Which of the following configuration of BJTs gives both voltage gain and current gain.

The back ground radiation in the atmosphere on the average is

When transistor works as an amplifier, its output is.

In Compton's effect the change in wavelength of a scattered photon is called.

From which radiation it is most difficult to protect oneslelf.

An operational amplifier have how many input terminals.

Ashes from a campfire deep in a cave show carbon -14 activity of only one eighth the activity of fresh wood. How long ago was that campfire made.

The rest mass of a particle is independent of the

Which term given below refers to the concept moving clocks run slower than clocks at rest w.r.t an observer.

The half life of a given radioactive isotope is 10 years The original mass of the isotope is 12 g What mass of this isotope remains un decayed after 20 years.

Which of the following are particle accelerators.

The chain reaction is controlled by a series of rods usually made of.

Which experiment confirmed the de Broglie hypothesis.

A darling ion amplifier is characterized by

The molecular weight of D2O is

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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When a platinum wire is heated of 1600^oC, it becomes