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

Nuclear force exists between

Question # 2

A unijunction transistor

Question # 3

An active component of an electronic circuit consisting of a small block of semiconducting material to which at least three electrical contacts are made is known as.

Question # 4

The splitting of atomic energy levels and the associated spectrum lines when the atoms are placed in a magnetic field is called.

Question # 5

In which of the following studies x-rays are not helpful.

Question # 6

When light of particular frequency is allowed to fall upon a metal surface electrons are emitted from a these emitted electrons are called.

Question # 7

In Compton's effect the change in wavelength of a scattered photon is called.

Question # 8

The emission of photons by a metal when electrons are incident is called.

Question # 9

Which of the following is basic transistor configuration.

Question # 10

Which of the following radiations can penetrate 20 cm thick steel.

Question # 11

In the experiment of photo electric effect the minimum frequency of photons at which electrons are emitted from a metal surface is called.

Question # 12

From which radiation it is most difficult to protect oneslelf.

Question # 13

The binary equivalent of 25 is

Question # 14

In a nuclear reactor chani reaction is controlled by introducing.

Question # 15

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

Question # 16

In heavy atims the electrons are assumed to be arranged in.

Question # 17

An operational amplifier have how many input terminals.

Question # 18

When of the following radiations are not emitted by electron transitions in atoms.

Question # 19

In a photocell, certain metals emit electrons for

Question # 20

Mosley's law establishes the X-rays fluorescence of target element with is.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 When light of particular frequency is allowed to fall upon a metal surface electrons are emitted from a these emitted electrons are called.
A. Photons
B. Holes
C. Quants
D. Photo electrons
2 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
3 In which of the following studies x-rays are not helpful.
A. Crystal structure
B. Crystal surface
C. Crystal symmetry
D. Crystal atoms
4 What is the quantitative description of the effect of radiation on the living tissue.
A. Radiation dosimetry
B. Radioactive dating
C. Telemetry
D. Dosage
5 Which of the following is the most massive particle.
A. Deuteron
B. Alpha particle
C. Neutron
D. positron
6 The best shield against Gama rays would be of
A. Heavy water
B. Aluminium
C. Iron
D. Lead
7 The energy of neutrons obtained during a fission reaction is.
A. 0.1 MeV
B. 1 KeV
C. 1 MeV
D. Zero
8 Which circuit elements has two stable states and can be used to store information.
A. Flip flop or latch
B. Logic gate
C. Oscillator
D. Amplifier
9 Mass -energy relation means that the product of mass times the square of the speed of light must be equal to.
A. Torque
B. Momentum
C. Energy
D. Impulse
10 The decay process in which an unstable nucleus splits into two fragments of comparable mass is known as.
A. Nuclear fission
B. nuclear fusion
C. Radioactivity
D. Carbon dating

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