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

00:00
Question # 1

The energy that must be added to separate the nucleus is called.

Question # 2

In an electronic transition atom cannot emit

Question # 3

Which experiment is a demonstration that matter and energy can display properties of both waves and particles.

Question # 4

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

Question # 5

Which of the following phenomenon is explained by the tunnel efffect.

Question # 6

The SI unit of decay constant is.

Question # 7

Which of the following is deflected by an electric field.

Question # 8

What is the basic advantage of class A operation of an amplifier.

Question # 9

The angular speed of an electron in the nth orbit of Bohr's hydrogen atom is.

Question # 10

Usually in an operational amplifier the inputs used are of

Question # 11

An Alpha particle is the same as

Question # 12

The mass of an helium nucleus is equal to.

Question # 13

Which of the following is required for maintaining sustained chain reaction.

Question # 14

As the mass number varies, which of the quantities does not change w.r.t nucleus.

Question # 15

The angle of scattering for which the Compton shift is maximum is.

Question # 16

The reciprocal of decay constant lamda of a radioactive element is.

Question # 17

The X-rays coming from a X-rays tube

Question # 18

The force that bonds protons and neutrons together int he nucleus despite the electrical repulsion of the protons is called.

Question # 19

Which circuit elements has two stable states and can be used to store information.

Question # 20

Ebers-Moll model describes the working of a

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The reciprocal of decay constant lamda of a radioactive substances is equal to.
A. total life
B. Half life
C. Mean life
D. Curie
2 The gama rays have
A. Thin tracks
B. Thick tracks
C. No definite tracks
D. Continuous tracks
3 Neutrino9 is a particle with
A. Charge less property and has no spin
B. Charge less property and has spin
C. Charge less like electron and has spin
D. The same property as neutron
4 How many terminals does a BJT have.
A. 1
B. 2
C. 3
D. 4
5 A photon is chasing an electron, whose speed is 0.9 c What is their relative speed.
A. 0.1 C
B. C
C. 0.8 C
D. 0.9 C
6 The SI unit of radioactivity is.
A. Becquerl
B. Curie
C. Joule
D. rutherford
7 The best shield against Gama rays would be of
A. Heavy water
B. Aluminium
C. Iron
D. Lead
8 A logic circuit with one input and one output that inverts the input signal at the output is.
A. AND gate
B. NOT gate
C. OR gate
D. NOR gate
9 In heavy elements of the periodic table the number of neutrons than protons are.
A. Lesser
B. Greater
C. Equal
D. Undetermined
10 In heavy atims the electrons are assumed to be arranged in.
A. Elliptical shells
B. Inner shells
C. Concentric shells
D. Outer shells

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