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	Half life of a radioactive elements 10 minutes If the initial cont. rate is 368 counts per minute for what time count rate reaches 32 counts per minute.	A. 20 minutes B. 40 minutes C. 80 minutes D. 120 minutes
2	During the alpha decay process	A. A neutron is emitted B. a electron is emitted C. A helium core is emitted D. A proton core is emitted
3	Deuterium is	A. A transuranic element B. A type o cosmic particle C. An isotope of hydrogen D. An isotope of helium
4	The transition of inner shell electrons in heavy atoms gives rise to the emission of.	A. Low energy b-particle B. High energy b-particle C. High energy X- rays D. High energy gama rays
5	What is the effect of electric and magnetic fields on X-rays	A. X-rays are deflected B. X-rays are not deflected C. X-rays are sometimes deflected and sometimes not D. Nothing can be said
6	Which Isotopes is use din radioactive dating.	A. C¹² B. C¹³ C. C¹⁴ D. C¹⁶
7	Special theory of relativity deals with the events in the frames of reference which move with constant.	A. Time interval B. Acceleration C. Momentum D. space interval
8	Induced fission result from the absorption of	A. electron B. Proton C. Nucleon D. Neutron
9	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
10	The reciprocal of decay constant lamda of a radioactive substances is equal to.	A. total life B. Half life C. Mean life D. Curie

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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

An oscillator is basically an amplifier with loop gain

Which uranium isotope having the atomic weights as given below is easily fissionable.

In heavy elements of the periodic table the number of neutrons than protons are.

X-rays are also used for

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.

Which both elements are good for nuclear fission.

The absorption of X-rays in a given material follows.

What is the basic advantage of class A operation of an amplifier.

The capture of neutron by a proton results in the formation of.

In a cloud chamber the Alpha particles leave

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

The wavelength of Lyman series for hydrogen spectrum lies in the.

The electrons behave as waves, because they can .

Nuclear force exists between

Phenomenon of radioactivity is due to disintegration of.

Ebers-Moll model describes the working of a

Specially designed solid state detector can be used to detect.

Which quantity remains fixed in isobars.

When an object moves with a very high speed the length in the direction of motion.

Positron are produced during.

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Set 19

Set 20

Set 21

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PPSC Physics Chapter 7 Important MCQ's

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