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

Which one of the following has maximum frequency.

Question # 2

In electromagnetic spectrum X-rays are next to.

Question # 3

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

Question # 4

How positives feedback will effect an amplifier.

Question # 5

The most readily fissionable isotope of uranium has atomic mass of

Question # 6

The mass defect of Bohr's atomic model is

Question # 7

The process of energy generation in sun and stars is.

Question # 8

Which of the following atom pair have the same structure.

Question # 9

X-rays used for

Question # 10

If an object moves with velocity of light the apparent mass of the object as compared to list original mass is

Question # 11

The X-rays coming from a X-rays tube

Question # 12

The tunnel effect makes possible

Question # 13

A complete amplifier circuit made on a silicon chip and enclosed in a small capsule is

Question # 14

Choose the one which acts as single inverter.

Question # 15

The Beta particles move along.

Question # 16

The decay process in which an unstable nucleus splits into two fragments of comparable mass is known as.

Question # 17

A unijunction transistor

Question # 18

In a cloud chamber the Alpha particles leave

Question # 19

If we use two diodes and a centre tapped transformer we eill get

Question # 20

Which of the following are electromagnetic waves.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The most readily fissionable isotope of uranium has atomic mass of
A. 234
B. 235
C. 236
D. 238
2 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
3 Matter waves
A. Are electromagnetic in nature
B. Travel with the speed of light
C. Can be diffracted
D. Are longitudinal waves
4 The Beta particles move along.
A. Straight path
B. Curved path
C. Zig Zag path
D. Circular path
5 What is the quantitative description of the effect of radiation on the living tissue.
A. Radiation dosimetry
B. Radioactive dating
C. Telemetry
D. Dosage
6 Ebers-Moll model describes the working of a
A. BJT
B. FET
C. MOSFET
D. UJT
7 Why hydrogen atom does not emit x-rays.
A. its size is very small
B. It contains only single electron
C. In it energy levels are for apart
D. In it energy levels are close to each other
8 The process of energy generation in sun and stars is.
A. Fusion of heavy nuclei
B. fusion of light nuclei
C. Fission of light nuclei
D. Solar panels
9 The photons emitted in inner shell transition are.
A. Alpha particle
B. Beta particle
C. Gama particle
D. Characteristic X-rays
10 The usefulness of X rays is largely due to their
A. Mass
B. Density
C. Volume
D. Penetrating power

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