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

00:00
Question # 1

The energy in an electromagnetic wave is carried in the units called.

Question # 2

Which of the following is the most commonly used regions of operations for a transistor.

Question # 3

The two elements with same number of electrons but different mass number are called.

Question # 4

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

Question # 5

The change in wavelength of an X-ray when scattered from an electron is called.

Question # 6

Radio carbon in the atmosphere is produced by the bombardment of.

Question # 7

In the fusion process, there are

Question # 8

Though the wavelength of X-rays is smaller than that of visible light yet the speed of X-rays in vacuum is.

Question # 9

Transistor stands for

Question # 10

Half life and mean lifetime of a radioactive element are.

Question # 11

x-rays cannot produce

Question # 12

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

Question # 13

The phenomenon is which the wavelength of scattered X-rays is larger than the incident X-rays is known as.

Question # 14

An operational amplifier have how many input terminals.

Question # 15

Both xenon and cesium each have

Question # 16

The photons emitted in inner shell transition are.

Question # 17

On which factor cut off wavelength of X-rays coming from a Coolidge tube depends upon.

Question # 18

The most familiar example of radioactive dating is.

Question # 19

A device used to determine mass of an isotope quite accurately is known as.

Question # 20

Which of the following is believed to be carrier o nuclear forces.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 A body moves with velocity of 2 x 106 m s-1 its relativistic mass becomes
A. Zero
B. Unity
C. Double of its rest mass
D. Infinity
2 A spectroscope sorts out
A. Atoms
B. Molecules
C. Elements
D. Isotopes
3 Which animal did Erwin Schrodinger contemplate using in his famous thought experiment.
A. mouse
B. Cat
C. Dog
D. Rabbit
4 Particle which can be added to the nucleus of an atom with changing its chemical properties are called.
A. Electrons
B. Protons
C. Neutrons
D. Alpha particles
5 When a helium atom loses an electron it becomes.
A. An a particle
B. A proton
C. A positive helium ion
D. A negative helium ion
6 Which of the following quantities is discrete according to Bohr's hypothesis.
A. Momentum
B.
Potential energy
C. Angular velocity
D. Angular momentum
7 Which of the following is the most massive particle.
A. Deuteron
B. Alpha particle
C. Neutron
D. positron
8 The mass of proton is equal to.
A. 1.673 x 10-27 kg
B. 1.673 x 1027 kg
C. 9.1 x 10-31 kg
D. 9.1 x 1031 kg
9 A gama ray of energy 1900 MeV is absorbed by
A. Proton antiproton pair
B. Electron positron pair
C. Producing heat in the substance
D. The orbit
10 In which of the following studies x-rays are not helpful.
A. Crystal structure
B. Crystal surface
C. Crystal symmetry
D. Crystal atoms

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