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

The usefulness of X rays is largely due to their

Question # 2

Matter waves

Question # 3

Radius of the Bother's orbit is r the radius of second orbit will be.

Question # 4

Positron are produced during.

Question # 5

The reciprocal of decay constant lamda of a radioactive substances is equal to.

Question # 6

Which of the following quantities is discrete according to Bohr's hypothesis.

Question # 7

The ionization energy for hydrogen atom is

Question # 8

Which six particles and their antiparticles interact by the weak interaction.

Question # 9

The X-rays coming from a X-rays tube

Question # 10

Phenomenon of radioactivity is due to disintegration of.

Question # 11

Radioactivity is the phenomenon associated with the.

Question # 12

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

Question # 13

Beta decay may occur by

Question # 14

Radioactive decay series can be represents on

Question # 15

Which of the following has greatest binding energy per nucleon.

Question # 16

Which of the following causes the deflection of Alpha particles when they re passed through a thin foil.

Question # 17

The average energy released per fission of U is about

Question # 18

Push pull amplifiers employ

Question # 19

The decimal equivalent of 1111 is

Question # 20

Which is the famous standard model of the universe.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Mosley's law establishes the x rays fluorescence's of target element with its.
A. Atomic weight
B. Atomic number
C. Density
D. Lattice constant
2 Which one of the following has maximum frequency.
A. Visible light
B. Gama rays
C. Ultraviolet rays
D. Infrared rays
3 Which of the following are particle accelerators.
A. Cyclotrons
B. Synchrotrons
C. Linear accelerators
D. All of the above
4 The unit Planck's constant is equivalent to that of.
A. Energy
B. Force
C. Velocity
D. Angular momentum
5 The most suitable material for moderator in a nuclear reactor is.
A. B
B. Cd
C. D2O
D. Uranium
6 Choose the one which acts as single inverter.
A. Common emitter
B. common collector
C. Common base
D. Diode
7 Why transistor is preferred to triode valve for use as an amplifier.
A. Because it can handle large power
B. Because it has higher input impedance
C. Because it has higher voltage gain
D. Because it has lower voltage gain
8 In a Nuclear reactor which material is often used as modeerator.
A. Water
B. Graphite
C. Uranium
D. Water and graphite
9 The nucleus of tritium is called.
A. Proton
B. Triton
C. Deuleron
D. Positron
10 Negative feedback
A. Increases stability
B. Decreases stability
C. Produces oscillatory
D. Cannot occur

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