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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PPSC Physics Topic 7 Modern Physics

00:00
Question # 1

X-ray are

Question # 2

The binding energy to pull the deuterium H apart into a proton and a neutron is equal to.

Question # 3

The energy in an electromagnetic wave is carried in the units called.

Question # 4

The half life of a given radioactive isotope is 10 years The original mass of the isotope is 12 g What mass of this isotope remains un decayed after 20 years.

Question # 5

The possible values of principal quantum number are.

Question # 6

In which of the following controlled nuclear chain reaction is used to liberate energy.

Question # 7

What is the scale for measurement of Banbridge mass spectrograph.

Question # 8

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

Question # 9

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

Question # 10

Specially designed solid state detector can be used to detect.

Question # 11

X-rays are

Question # 12

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

Question # 13

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

Question # 14

Which of the following can be used as an arrester in a nuclear reactor.

Question # 15

Which type of radiation would be stopped completely by a thin piece of cardboard.

Question # 16

The constant lamda is called the.

Question # 17

A deuteron is

Question # 18

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

Question # 19

The X-rays coming from a X-rays tube

Question # 20

The total number nucleons in a nucleus are called.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Which of the following phenomenon cannot be understood by quantum theory.
A. Photo electric effect
B. Compton effect
C. X-Rays production
D. Interference
2 Which of the following describes that the time interval between two events may be different in different of references
A. Simullaneously
B. Time dilation
C. Length contraction
D. Mass variation
3 Push pull amplifiers employ
A. One transistor
B. Two transistors
C. Three transistors
D. Four transistors
4 Usually in an operational amplifier the inputs used are of
A. Equal voltage and same polarity
B. Equal voltage and opposite polarity
C. Different voltage and same polarity
D. Different voltage and opposite polarity
5 Critical mass is the minimum mass needed for
A. Fusion
B. H-Bomb
C. Chain reaction
D. Binding energy
6 The bunding energy per nucleon for iron is.
A. zero
B. Maximum
C. Negative
D. Minimum
7 How positives feedback will effect an amplifier.
A. Increases the voltage gain
B. Decreases the voltage gain
C. Imitates oscillation to occur
D. Damaged it
8 Which of the following is its own anti particle.
A. Photon
B. Electron
C. Proton
D. positron
9 One rem is equal to.
A.
0.1 Sv
B. 0.01 Sv
C. 0.001 Sv
D. 0.0001 SV
10 The unit generally used for measuring astronomical distances is.
A. Parsecs
B. Light year
C. Metre
D. Kilometer

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