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

The electrons behave as wave because.

Question # 2

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

Question # 3

The Inner electrons in heavy atoms can be disturbed and dislodged by.

Question # 4

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

Question # 5

In a nuclear reactor chani reaction is controlled by introducing.

Question # 6

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 # 7

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

Question # 8

The band width of an audio amplifier is.

Question # 9

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

Question # 10

When Photon incident on a metal produce the emission of electrons the process is called.

Question # 11

X-rays are good for imagining

Question # 12

Choose the one which acts as single inverter.

Question # 13

The hyperfine lines in the spectrum relates to

Question # 14

The Beta particles move along.

Question # 15

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

Question # 16

The input exultation for a JFET is

Question # 17

Magnetic field does not cause deflection in

Question # 18

The emission of electrons from a metal surface when exposed to light of suitable frequency is called.

Question # 19

The unit Planck's constant is equivalent to that of.

Question # 20

Particle which can be added to the nucleus of an atom with changing its chemical properties are called.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 X-rays are not used in RADARs because
A. They are not reflected by the target
B. they are not completely absorbed by air
C. They damage the target
D. They are reflected by the target
2 One rem is equal to.
A.
0.1 Sv
B. 0.01 Sv
C. 0.001 Sv
D. 0.0001 SV
3 Which of the following circuits is used as local oscillator in radio receivers.
A. AF oscillator
B. Phase Local Loop
C. RF oscillator
D. All of the above
4 The converse of pair production is
A. Annihilation of matter
B. Materialization
C. Compton effect
D. Photo electric effect
5 In de Brogile model electron orbit must form
A. Spectrum
B. Wave packets
C. Franhoffer lines
D. Clouds
6 Which particle has zero charge and zero rest mass.
A. Neutron
B. Proton
C. Electron
D. Photon
7 NOR gate is a combination of.
A. OR gate and NOT gate
B. OR gate and AND gate
C. OR gate and OR gate
D. NOT gate and AND gate
8 Which of the following is formed by decay of a free neurton.
A. A number of electrons
B. Two protons
C. A proton and an electron
D. An alpha particle
9 The total energy of an electron in an orbit around the nucleus is.
A. Zero
B. Unity
C. Infinity
D. Negative
10 Which one of the following is a convenient energy unit to express the energy of sub atomic particles.
A. Joule
B. electron volt
C. Watt
D. Curie

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