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	In a Geiger Marsden experiment why do the great majority of the Alpha particles pass straight through the metal foil.	A. Atomic nuclei may contain neutrons B. Atoms are electrically neutral C. Atoms are largely empty space D. Atoms have positively charged nuclei
2	Which of the following configuration of BJTs gives both voltage gain and current gain.	A. common Base B. Common Emtter C. Common collector D. All of the above
3	In a resistor, when base width decreases with increasing Vbc, this phenomenon is called.	A. Tunneling B. Thermal runway C. Pinch off D. Early effect
4	An active component of an electronic circuit consisting of a small block of semiconducting material to which at least three electrical contacts are made is known as.	A. Rectifier B. Amplifier C. Thermocouple D. Transistor
5	The gama rays have	A. Thin tracks B. Thick tracks C. No definite tracks D. Continuous tracks
6	The best shield against Gama rays would be of	A. Heavy water B. Aluminium C. Iron D. Lead
7	When a platinum wire is heated of 1600^oC, it becomes	A. orange B. Cherry red C. Dull red D. White
8	The process of pair production will take place if the energy of photon is greater than.	A. 0.21 MeV B. 0.51 MeV C. 1.51 MeV D. 1.21 MeV
9	The energy in electron volts necessary to remove the most loosely bound electron from the neutral atom is known as.	A. Faraday energy B. Wave number C. Ionization Potential D. Excitation potential
10	Which both elements are good for nuclear fission.	A. Thorium an uranium B. Thorium and radium C. Plutonium and uranium D. Plutonium and throrium

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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.

What do we study by crystallography.

The process of energy generation in sun and stars is.

Alpha particles emitted from a radioactive material are.

The gama rays have

Which circuit elements has two stable states and can be used to store information.

Which of the following propagates at the same speed as velocity of light.

Magnetic field does not cause deflection in

The X-rays coming from a X-rays tube

If we use two diodes and a centre tapped transformer we eill get

The chemical behavior of an atom is determined by

Critical mass is the minimum mass needed for

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

In fission reaction, heavy water is used as a

In a fission reactor which particle causes a uranium -235 nucleus to split.

In a cloud chamber the Alpha particles leave

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

In a Nuclear reactor which material is often used as modeerator.

In a resistor, when base width decreases with increasing Vbc, this phenomenon is called.

The molecular weight of D2O is

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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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