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 phenomenon of radioactivity is associated with

Question # 2

The critical mass of a fission reaction is.

Question # 3

Nuclear force as compared to electrostatic force is.

Question # 4

The minimum amount of energy in an individual electron has to gain to escape from a particular surface is called.

Question # 5

Which of the following is its own anti particle.

Question # 6

LASER is a device which can produce.

Question # 7

Sub atomic paticles whihc does not experience strong nuclear force are.

Question # 8

The Beta particles move along.

Question # 9

When a helium atom loses an electron it becomes.

Question # 10

There are how many types of forces or interactions.

Question # 11

The process of conversation of a photon into an electron and a position is called.

Question # 12

At room temperature the potential difference between the two sides of depletion region for silicon is of the order of.

Question # 13

Low frequency response of an amplifier is mainly limited by.

Question # 14

In an electronic transition atom cannot emit

Question # 15

The radius of first Bohr's orbit for hydrogen atom is.

Question # 16

There are how many modes of operations of a BJT.

Question # 17

As the mass number increases, the binding energy per nucleon in a nucleus

Question # 18

Alpha particles are

Question # 19

One rem is equal to.

Question # 20

The radius of second orbit of hydrogen atom is

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The scientific theory concerning the coming into existence of universe.
A. Cosmology
B. Cosmogony
C. Cosmography
D. Cosmos
2 When transistor works as an amplifier, its output is.
A. More
B. Less
C. Zero
D. Directly proportional to the input
3 The value of open loop gain for the amplifier is
A. zero
B. very low
C. very high
D. of an intermediate vaue
4 Deuterium is
A. A transuranic element
B. A type o cosmic particle
C. An isotope of hydrogen
D. An isotope of helium
5 Among different elements of the periodic table which of the following atoms is the simplest.
A. Carbon
B. Oxygen
C. Hydrogen
D. Nitrogen
6 Emitter follower amplifier is an example of.
A. Current series feedback
B. Voltage series feedback
C. Current shunt feed back
D. Voltage shunt feedback
7 The path of Gama rays in Wilson cloud chamber is
A. Irregular
B. Dense and straight
C. Thin and continuous
D. Thin and discontinuous
8 If we use two diodes and a centre tapped transformer we eill get
A. Transistor
B. Amplifier
C. Half wave rectifier
D. Full wave rectifier
9 An operational amplifiers will act as an inverting amplifier when the input signal is connected to.
A. Inverting terminal
B. Non inverting terminal
C. Earthened wire
D. Both a and b
10 Which given element has lowest work function
A. Na
B. Al
C. si
D. C

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