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

00:00
Question # 1

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

Question # 2

A factory buy 100 g of a radioactive chemical with a half life of 5 years which decays to a stable compound How much of the chemical will still be radioactive 10 years time.

Question # 3

What do we study by crystallography.

Question # 4

In an electronic transition atom cannot emit

Question # 5

From which radiation it is most difficult to protect oneslelf.

Question # 6

Which animal did Erwin Schrodinger contemplate using in his famous thought experiment.

Question # 7

The chemical behavior of an atom is determined by

Question # 8

In CE amplifier phased reversal occurs when the output voltage is taken between

Question # 9

When light of particular frequency is allowed to fall upon a metal surface electrons are emitted from a these emitted electrons are called.

Question # 10

Which of the following is basic transistor configuration.

Question # 11

For the normal operation of transistor the emitter base junction is always.

Question # 12

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

Question # 13

The Compton effect in X-rays proves that

Question # 14

Which of the following are particle accelerators.

Question # 15

The input resistance of a JFET is of the order of.

Question # 16

An example of continuous spectrum is.

Question # 17

The particles less in mass than protons are

Question # 18

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

Question # 19

Which of the following describes that the time interval between two events may be different in different of references

Question # 20

Which type of amplifier causes minimum drain of power supply.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 In potential for the material of cathode pure metals are rarely used because of their
A. Low reflecting power
B. High reflecting power
C. Low resolving power
D. High resolving power
2 A spectroscope sorts out
A. Atoms
B. Molecules
C. Elements
D. Isotopes
3 Binding energy per nucleon is.
A. Greatest for heavy nuclei
B. Least for heavy nuclei
C. Greatest for light nuclei
D. Greatest for medium weight nuclei
4 The output of two input OR gate is zero only when its.
A. Either input is one
B. Either input is zero
C. Both inputs are zero
D. Both inputs are one
5 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
6 The half life of a radioactive substance as compared to its mean lif eis.
A. 30%
B. 50%
C. 70%
D. 90%
7 Which of the following is the most commonly used regions of operations for a transistor.
A. Cut off
B. Saturation
C. Active
D. All of these
8 The constant lamda is called the.
A. Decay constant
B. Gas constant
C. Planck's constant
D. Dose constant
9 Induced fission result from the absorption of
A. electron
B. Proton
C. Nucleon
D. Neutron
10 The scientific theory concerning the coming into existence of universe.
A. Cosmology
B. Cosmogony
C. Cosmography
D. Cosmos

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