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 Class Physics Chapter 7 Important MCQ's

Sr.#	Question	Answer
1	Which given element has lowest work function	A. Na B. Al C. si D. C
2	The phenomenon of radioactivity is associated with	A. Decay of nucleus B. Decay of atoms C. Fusion of nuclei D. Emission of electrons
3	In order to reduce uncertainty in momentum one must use light of.	A. Short wavelength B. Large wavelength C. Wavelength of intermediate value D. Wavelength of any value
4	White light a tungsten filament lamp is passed through sodium vapor and viewed through a diffraction gritting Which of the following best describes the spectrum which would be seen.	A. Coloured lines on a black background B. Coloured lines on a white background C. Dark lines on a coloured background D. Dark lines on a white background
5	The gama rays have	A. Thin tracks B. Thick tracks C. No definite tracks D. Continuous tracks
6	Which term given below refers to the concept moving clocks run slower than clocks at rest w.r.t an observer.	A. Simultaneously B. Mass variation C. time dilation D. Length contraction
7	The process of energy generation in sun and stars is.	A. Fusion of heavy nuclei B. fusion of light nuclei C. Fission of light nuclei D. Solar panels
8	During transition, atom cannot emit	A. Visible light B. Ultraviolet radiation C. Infrared radiations D. gama rays
9	In which of the following studies x-rays are not helpful.	A. Crystal structure B. Crystal surface C. Crystal symmetry D. Crystal atoms
10	The photons emitted in inner shell transition are.	A. Alpha particle B. Beta particle C. Gama particle D. Characteristic X-rays

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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

One radian is equal to.

If an object moves with velocity of light the apparent mass of the object as compared to list original mass is

The input exultation for a JFET is

Why FET amplifiers are called voltage controlled devices.

In the experiment of production of X rays electrons are accelerated towards the anode by

The Compton effect in X-rays proves that

A factory buy 100 g of a radioactive chemical with a half life of 5 years which decays to a stable compound How much of the chemical will still be radioactive 10 years time.

The angle of scattering for which the Compton shift is maximum is.

The helium nucleus does not contain

Which temperature is required for the fusion of two nuclides.

The phenomenon in which a photon of frequency 'f' is scattered by an electron and the scattered photon has frequency f <f is known as.

The critical mass of a fissionable material is.

Base current of a transistor is 1 mA and collector current is 99 mA What is emitter current.

The 'x' in X-rays means

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

The SI unit of current gain is.

When objects placed in a room are exposed to X- rays they appear

Compton scattering experiment seemed to indicate that radiation had

For an electron or position the rest mass energy is equal to.

Critical mass is the minimum mass needed for

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

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Set 21

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PPSC Class Physics Chapter 7 Important MCQ's

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