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	If the base emitter junction is forward biased and base collector junction is reverse biased the BJT is in.	A. cut of mode B. Amplification mode C. Saturation mode D. Inversion mode
2	When a helium atom loses an electron it becomes.	A. An a particle B. A proton C. A positive helium ion D. A negative helium ion
3	X-rays are	A. Longitudinal wave B. Transvers waves C. Secondary waves D. Fast sound waves
4	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.	A. 25 g B. 50 g C. 75 g D. 100 g
5	A CE amplifier with by passed emitter resistor is an example of.	A. Current series feedback B. Voltage sires feed back C. Current shunt feedback D. Voltage shunt feed back
6	Which of the following is believed to be carrier o nuclear forces.	A. Lepton B. Meson C. Bason D. Baryon
7	The nucleus of tritium is called.	A. Proton B. Triton C. Deuleron D. Positron
8	Positron are produced during.	A. Annihilation B. ionization C. Pair production D. x rays production
9	The electron behave an waves because	A. They can be diffracted by a crystal B. They can produce ions in gases C. They can be deflected by magnetic field D. They can be deflected by electric field
10	Cs - 137 is a radioisotope used ot determine the thickness of the walls of steel pipes Cs 137 is chosen because it emits	A. Radiowaves B. Alpha particles C. Beta particles D. gama particles

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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

Which both elements are good for nuclear fission.

Which experiment confirmed the de Broglie hypothesis.

Special theory of relativity deals with the events in the frames of reference which move with constant.

Magnetic field does not cause deflection in

In the fusion process, there are

The tunnel effect makes possible

The half life of a radioactive substance is 6 years What is the time taken by 12 g of this substance to decay completely.

The average energy released per fission of U is about

Which of the following is required for maintaining sustained chain reaction.

The most abundant isotope of neon is.

A newly prepared radioactive nuclide has a decay constant Lamda of 10-6 s-1 What is the approximate half life of the nuclide.

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

Why is a capacitor resistor combination used in oscillators in grid circuit.

Which of the following is not a mode of radioactive decay

X-rays used for

The working of cloud chamber is based in the presence of.

The usefulness of X rays is largely due to their

Two electrons approach each other their relative velocity will be.

Mosley's law establishes the X-rays fluorescence of target element with is.

Which type of amplifier causes minimum drain of power supply.

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Set 17

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Set 21

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PPSC Physics Chapter 7 Important MCQ's

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