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	The tunnel effect makes possible	A. Alpha decay B. Gama rays C. Positive Beta decay D. negative Beta dacay
2	A logic circuit with one input and one output that inverts the input signal at the output is.	A. AND gate B. NOT gate C. OR gate D. NOR gate
3	The half life of uranium -238 is	A. 1620 years B. 4.5 x 10⁹years C. 3-8 days D. 23.5 minutes
4	Which of the following circuits is used as local oscillator in radio receivers.	A. AF oscillator B. Phase Local Loop C. RF oscillator D. All of the above
5	The binary equivalent of 25 is	A. 111001 B. 11001 C. 1001 D. 10101
6	The total energy of an electron in an orbit around the nucleus is.	A. Zero B. Unity C. Infinity D. Negative
7	The exitance of more than one distinct state with the same energy is called.	A. Exigency B. Degeneracy C. Normally D. Emergency
8	The maximum K.E. with which photoelectrons are emitted depends very strongly on the.	A. Intensity of incident light B. Electric field near the photocathode C. Frequency of incident light D. Polarization of incident light
9	Which circuit elements has two stable states and can be used to store information.	A. Flip flop or latch B. Logic gate C. Oscillator D. Amplifier
10	Push pull amplifiers employ	A. One transistor B. Two transistors C. Three transistors D. Four transistors

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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

The half life of radium -226 is

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.

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

Which one of the following is a convenient energy unit to express the energy of sub atomic particles.

Transistors with various combinations are widely used as switches in.

Which experiment is a demonstration that matter and energy can display properties of both waves and particles.

Radioactivity is the phenomenon associated with the.

Two electrons approach each other their relative velocity will be.

Half life and mean lifetime of a radioactive element are.

The continuous X rays spectrum is due to an effect.

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

The Inner electrons in heavy atoms can be disturbed and dislodged by.

The energy that must be added to separate the nucleus is called.

In which of the following studies x-rays are not helpful.

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 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.

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

The molecular weight of D2O is

Particle which can be added to the nucleus of an atom with changing its chemical properties are called.

Hydrogen bomb is based on

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

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Set 11

Set 12

Set 13

Set 14

Set 15

Set 16

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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