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.

MCQ's Test For PPSC Physics Topic 7 Modern Physics

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  • Total Questions20

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PPSC Physics Topic 7 Modern Physics

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Question # 1

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

Question # 2

Transistor stands for

Question # 3

An operational amplifier have how many input terminals.

Question # 4

A freshly made sample of radioactive material gives a count rate of 8,000 counts per minute After twenty days it gives a count rate of 500 counts per minute What is the half life of the materials.

Question # 5

A slow neutron can cause fission in

Question # 6

Which of the following wavelength lies in X-rays region.

Question # 7

The resistance between(+) and (-) inputs of an amplifier is.

Question # 8

48 days after the receipt the amount of iodine -131 left behind is only.

Question # 9

In radiotherapy X-rays are used to.

Question # 10

What is the relativistic version of the Schrodinger equation.

Question # 11

When a posirtron is emitted it causes.

Question # 12

Cobalt -60 is a radioactive element with half life of 5.25 years. What fraction of the original sample will be left after 26 years.

Question # 13

Alpha particles are used for the treatment of skin of a patient due to.

Question # 14

Which of the following phenomenon is explained by the tunnel efffect.

Question # 15

An AND gate is.

Question # 16

A complete amplifier circuit made on a silicon chip and enclosed in a small capsule is

Question # 17

Ionization of a hydrogen atom originally in its ground state takes a minimum out of energy equal to.

Question # 18

The total energy of an electron in an orbit around the nucleus is.

Question # 19

Compton scattering experiment seemed to indicate that radiation had

Question # 20

The binding energy per nucleon for uranium is about.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 One radian is equal to.
A. 0.1 Gy
B. 0.01 Gy
C. 0.001 Gy
D. 0.0001 gy
2 Photocells are used for
A. Security systems
B. Counting systems
C. Automatic door system
D. All of the above
3 The electrons behave as waves, because they can .
A. Produce ions in gases
B. Diffracted by a crystal
C. Be deflected by electric fields
D. Be deflected by magnetic fields
4 In heavy elements of the periodic table the number of neutrons than protons are.
A. Lesser
B. Greater
C. Equal
D. Undetermined
5 In CE amplifier phased reversal occurs when the output voltage is taken between
A. Base and collector
B. Base and emitter
C. Collector and emitter
D. None of the terminals
6 Neither the position nor the momentum of a particle can be predicted with arbitrarily great precision is the statement of.
A. Archimede's principle.
B. Heisenberg uncertainty principle
C. Mosley's law
D. Schrodinger's wave equation
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 The process of energy generation in sun and stars is.
A. Fusion of heavy nuclei
B. fusion of light nuclei
C. Fission of light nuclei
D. Solar panels
9 Which experiment is a demonstration that matter and energy can display properties of both waves and particles.
A. young's double slit experiment
B. Division germier experiment
C. Heisenberg's uncertainty experiment
D. Stern Gerlach experiment
10 The path of electron in Rutherford atomic model according to classical theory a.
A. Parabolic
B. Straight line
C. Spiral
D. Circular

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