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

Try The MCQ's Test For PPSC Physics Topic 7 Modern Physics

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PPSC Physics Topic 7 Modern Physics

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Question # 1

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

Question # 2

Work function is generally expressed in.

Question # 3

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

Question # 4

When Be is bombarded by alpha particles, then we obtain

Question # 5

The relationship between mass number atomic number and neutron number is.

Question # 6

The phenomenon in which a photon of frequency 'f' is scattered by an electron and the scattered photon has frequency f <f is known as.

Question # 7

Which one of the following spectra series is in the ultraviolet region.

Question # 8

The advantage of electron tube over semiconductor is.

Question # 9

Neutrino9 is a particle with

Question # 10

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

Question # 11

The path of electron in Rutherford atomic model according to classical theory a.

Question # 12

The absorption of X-rays in a given material follows.

Question # 13

Current gain of a CE amplifier is 50, ITS hfe is about

Question # 14

Which of the following is formed by decay of a free neurton.

Question # 15

The process of energy generation in sun and stars is.

Question # 16

One becquerel is equal to

Question # 17

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

Question # 18

Tracer techniques make use of.

Question # 19

If an object moves with velocity of light the apparent length of the object moving the direction of motion becomes.

Question # 20

The most convenient unit for energy at the atomic level is.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Lissajou's figures are used in a Cathode Ray Oscilloscope while measuring.
A. Time period
B. Frequency
C. Voltage gain
D. phase angle
2 The Inner electrons in heavy atoms can be disturbed and dislodged by.
A. X rays
B. Alpha particle
C. Beta particles
D. gama particles
3 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
4 Sub atomic particles which experience strong nuclear force are.
A. Leptons
B. Hadrons
C. Mesons
D. Quarks
5 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
6 Radius of the Bother's orbit is r the radius of second orbit will be.
A. 2 r
B. 3 r
C. 4 r
D. 8 r
7 The most readily fissionable isotope of uranium has atomic mass of
A. 234
B. 235
C. 236
D. 238
8 Which of the following phenomenon cannot be understood by quantum theory.
A. Photo electric effect
B. Compton effect
C. X-Rays production
D. Interference
9 The charge on a helium nucleus is equal to the charge of.
A. Two electrons
B. Two protons
C. Two neutrons
D. One proton
10 Which of the following causes the deflection of Alpha particles when they re passed through a thin foil.
A. Attraction of nucleus
B. Collision with nuclei
C. Interactions with electrons
D. Electrostatic repulsion by the nucleus

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