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 potential due to which an electron is lifted from gerund state to excited state is.

Question # 2

One becquerel is equal to

Question # 3

Which experiment confirmed the de Broglie hypothesis.

Question # 4

Which of the following radiations will burn human skin

Question # 5

X-ray are

Question # 6

Mass -energy relation means that the product of mass times the square of the speed of light must be equal to.

Question # 7

Emitter follower amplifier is an example of.

Question # 8

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

Question # 9

x-rays cannot produce

Question # 10

An oscillator is basically an amplifier with loop gain

Question # 11

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

Question # 12

A solid state detector is basically

Question # 13

Two electrons approach each other their relative velocity will be.

Question # 14

The critical mass of a fission reaction is.

Question # 15

The path of Gama rays in Wilson cloud chamber is

Question # 16

Positron are produced during.

Question # 17

Which of the following is the most massive particle.

Question # 18

Neither the position nor the momentum of a particle can be predicted with arbitrarily great precision is the statement of.

Question # 19

An example of continuous spectrum is.

Question # 20

X-rays are not used in RADARs because

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The particles equal in mass or greater than protons are called.
A. Mesons
B. Bosons
C. Baryons
D. Nucleons
2 The ionization energy for hydrogen atom is
A. -11.6 eV
B. -12.6 eV
C. -13.6 eV
D. -19.6 eV
3 At what speed the mass of a body will be doubled.
A. 0.67 C
B. 0.77 C
C. 0.87 C
D. 0.97 C
4 Alpha particles are
A. Helium nuclei
B. sodium nuclei
C. Ioized nuclei
D. Hydrogen nuclei
5 The energy of neutrons obtained during a fission reaction is.
A. 0.1 MeV
B. 1 KeV
C. 1 MeV
D. Zero
6 Ebers-Moll model describes the working of a
A. BJT
B. FET
C. MOSFET
D. UJT
7 In which reaction two or more small light nuclei nuclei come together or fuse to form a large nucleus.
A. Radioactivity
B. Radioactivity dating
C. Nuclear fusion
D. Nuclear fission
8 The back ground radiation in the atmosphere on the average is
A. 0.5 Sv per year
B. 1.0 Sv per year
C. 1.5 Sv per year
D. 2.0 Sv per year
9 The critical mass of a fissionable material is.
A. 1 kg
B. 10 kg
C. 100 kg
D. 1.,000 kg
10 A darling ion amplifier is characterized by
A. High voltage and current gain
B. High input resistance and current gain
C. High output resistant and current gain
D. Low input resistance and current gain

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