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	Which of the following wavelength lies in X-rays region.	A. 1 A B. 100 A C. 1,000 A D. 10,000 A
2	The term used for the emission of electrons when light strikes a surface.	A. The zeeman effect B. The photo electric effect C. Skin effect D. Compton effect
3	A unijunction transistor	A. Has only one junction B. Is a two terminal device C. Is fabricated from germanium D. Is fabricated fromuranium
4	In a cloud chamber the Alpha particles leave	A. Dense, straight and continuous tracks B. Only straight and continuous tracks C. Thin and discontinuous tracks D. Irregular tracks
5	Lines of Balmer series are emitted by hydrogen atom when the electron jumps from	A. The first orbit to any other orbit B. Higher orbits to second orbit C. Higher orbits to first orbit D. The third orbit to higher orbit
6	A solid state detector is basically	A. A reverse biased p-n junction B. A forward biased p-n junction C. A p-n -p transistor D. A n-p-n transistor
7	The bunding energy per nucleon for iron is.	A. zero B. Maximum C. Negative D. Minimum
8	The half life of a radioactive substance is 6 years What is the time taken by 12 g of this substance to decay completely.	A. 12 years B. 24 years C. 48 years D. infinity
9	An emitter follower has	A. High input impedance and high output impedance B. High input impedance and low output impedance C. Low input impedance and low output impedance D. Low input impedance and high output impedance
10	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

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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

Critical mass is the minimum mass needed for

The emission of photons by a metal when electrons are incident is called.

Lines of Balmer series are emitted by hydrogen atom when the electron jumps from

Which of the following is not a mode of radioactive decay

The half life of isotopes X is four days and its initial mass is 32 mg What mass of the isotope X will remain after twelve days.

The 'x' in X-rays means

Beta decay may occur by

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

The particles less in mass than protons are

LASER beam my be measure very large distance because it is.

X-rays spectrum may be

As the mass number varies, which of the quantities does not change w.r.t nucleus.

The bunding energy per nucleon for iron is.

If the base emitter junction is forward biased and base collector junction is reverse biased the BJT is in.

The half life of a radioactive substance depend on.

X-rays are not used in RADARs because

The most suitable material for moderator in a nuclear reactor is.

The force that bonds protons and neutrons together int he nucleus despite the electrical repulsion of the protons is called.

the alpha particle does not travel for enough in air.

The charge on a helium nucleus is equal to the charge of.

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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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