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

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Question # 1

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

Question # 2

Neither the position nor the momentum of a particle can be predicted with arbitrarily great precision is the statement of.

Question # 3

Which of the following propagates at the same speed as velocity of light.

Question # 4

From which radiation it is most difficult to protect oneslelf.

Question # 5

Critical mass is the minimum mass needed for

Question # 6

An Alpha particle is the same as

Question # 7

The most abundant isotope of neon is.

Question # 8

During transition, atom cannot emit

Question # 9

A single quantum of electromagnetic radiation is termed as.

Question # 10

Compton scattering experiment seemed to indicate that radiation had

Question # 11

An oscillator is basically an amplifier with loop gain

Question # 12

How many types of quarks were suggested i 1964 quark theory.

Question # 13

In an electronic transition atom cannot emit

Question # 14

The ionization energy for hydrogen atom is

Question # 15

When using the formula E = h lambda what unit should energy have.

Question # 16

The chemical behavior of an atom is determined by

Question # 17

The most readily fissionable isotope of uranium has atomic mass of

Question # 18

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

Question # 19

Which one of the following quantities is conserved in a nuclear reactor.

Question # 20

In order to reduce uncertainty in momentum one must use light of.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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.
A. 5 days
B. 10 days
C. 40 days
D. 20 days
2 A transistor can be used as
A. Oscillator
B. Amplifier
C. Switch
D. Both a and c
3 The advantage of electron tube over semiconductor is.
A. its efficiency
B. its unlimited type
C. Its low consumption power
D. That it takes no warming up time
4 The rest mass of a particle is independent of the
A. Wavelength of the particle
B. Mass of the particle
C. Speed of the particle
D. Energy of the particle
5 An operational amplifier have how many input terminals.
A. One
B. Two
C. Three
D. Four
6 The nucleus of tritium is called.
A. Proton
B. Triton
C. Deuleron
D. Positron
7 The ionization potential of hydrogen atom is.
A. 10.2 V
B. 13.6 V
C. 12.97 V
D. 27.2 V
8 The back ground radiation in the atmosphere on the average is
A. 0.5 Sv per year
B. 1.0 Sv per year
C. 1.5 Sv per year
D. 2.0 Sv per year
9 Which of the following is its own anti particle.
A. Photon
B. Electron
C. Proton
D. positron
10 The charge on a helium nucleus is equal to the charge of.
A. Two electrons
B. Two protons
C. Two neutrons
D. One proton

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