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 continuous X rays spectrum is due to an effect.

Question # 2

A unijunction transistor

Question # 3

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

Question # 4

As oscillator is basically an amplifier with loop gain

Question # 5

Two electrons approach each other their relative velocity will be.

Question # 6

Isotopes are the atoms of the same elements which contain equal number of.

Question # 7

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

Question # 8

The phenomenon of radioactivity is associated with

Question # 9

Phenomenon of radioactivity is due to disintegration of.

Question # 10

Which of the following has the highest relative biological effectiveness or the quality factor.

Question # 11

Which of the following is believed to be carrier o nuclear forces.

Question # 12

Negative feedback

Question # 13

Which BJT configurations used for signal inversion.

Question # 14

The process of energy generation in sun and stars is.

Question # 15

The Rutherford atom according to classical theory is

Question # 16

The decimal equivalent of 1111 is

Question # 17

In a fission reactor which particle causes a uranium -235 nucleus to split.

Question # 18

Which of the following is not an electromagnetic wave.

Question # 19

The energy delivered to the tissue per unit mass is called the absorbed dose of.

Question # 20

The electron behave an waves because

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Alpha particles are used for the treatment of skin of a patient due to.
A. Highly ionizing power
B. Low penetration power
C. Positively charged particles
D. Helium nucler
2 Photocells are used for
A. Security systems
B. Counting systems
C. Automatic door system
D. All of the above
3 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
4 The SI unit of decay constant is.
A. m
B. m-1
C. s-1
D. N m-1
5 Emitter follower amplifier is an example of.
A. Current series feedback
B. Voltage series feedback
C. Current shunt feed back
D. Voltage shunt feedback
6 In a transistor which one is very thin.
A. Collector
B. Emitter
C. Base
D. Depletion region
7 The relationship between mass number atomic number and neutron number is.
A. A = Z + N
B. A = Z - N
C. Z = A + N
D. N = Z - A
8 The half life of a radioactive substance is 6 years What is the time taken by 12 g of this substance to decay completely.
A. 12 years
B. 24 years
C. 48 years
D. infinity
9 Tracer techniques make use of.
A. Neutron scattering
B. Electron beams
C. LASER
D. Radioactive isotopes
10 Lines of Balmer series are emitted by hydrogen atom when the electron jumps from
A. The first orbit to any other orbit
B. Higher orbits to second orbit
C. Higher orbits to first orbit
D. The third orbit to higher orbit

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