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

Radius of the Bother's orbit is r the radius of second orbit will be.

Question # 2

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

Question # 3

How many types of quarks were suggested i 1964 quark theory.

Question # 4

When using the formula E = h lambda what unit should energy have.

Question # 5

In order to reduce uncertainty in momentum one must use light of.

Question # 6

What is the effect of electric and magnetic fields on X-rays

Question # 7

Among different elements of the periodic table which of the following atoms is the simplest.

Question # 8

The total number nucleons in a nucleus are called.

Question # 9

The most convenient unit for energy at the atomic level is.

Question # 10

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

Question # 11

When a platinum wire is heated of 1600 oC, it becomes

Question # 12

In electromagnetic spectrum X-rays are next to.

Question # 13

Alpha particles emitted from a radioactive material are.

Question # 14

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

Question # 15

During the alpha decay process

Question # 16

The relationship between mass number atomic number and neutron number is.

Question # 17

The SI unit of equivalent dose is

Question # 18

A photon is chasing an electron, whose speed is 0.9 c What is their relative speed.

Question # 19

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

Question # 20

Half life and mean lifetime of a radioactive element are.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 If an object moves with velocity of light the apparent length of the object moving the direction of motion becomes.
A. Larger
B. Smaller
C. Zero
D. Infinity
2 Which experiment is a demonstration that matter and energy can display properties of both waves and particles.
A. young's double slit experiment
B. Division germier experiment
C. Heisenberg's uncertainty experiment
D. Stern Gerlach experiment
3 The energy that must be added to separate the nucleus is called.
A. Critical energy
B. Binding energy
C. Gravitational energy
D. Electrostatic energy
4 The energy in electron volts necessary to remove the most loosely bound electron from the neutral atom is known as.
A. Faraday energy
B. Wave number
C. Ionization Potential
D. Excitation potential
5 The SI unit of decay constant is.
A. m
B. m-1
C. s-1
D. N m-1
6 Transistor are made from
A. Plastics
B. Metals
C. Insulators
D. Doped semiconductors
7 The maximum K.E of photo electrons depends upon
A. Energy of incident radation
B. Frequency of incident radiation
C. Wavelength of incident radiation
D. Mass of incident radiation
8 The Inner electrons in heavy atoms can be disturbed and dislodged by.
A. X rays
B. Alpha particle
C. Beta particles
D. gama particles
9 Matter waves
A. Are electromagnetic in nature
B. Travel with the speed of light
C. Can be diffracted
D. Are longitudinal waves
10 Marie Curie and Pierre Curie discovered two new radioactive elements which are.
A. Uranium and radkum
B. Platinum and radium
C. Polonium and radium
D. Crypton and radon

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