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

A darling ion amplifier is characterized by

Question # 2

A unijunction transistor

Question # 3

In n-p-n transistor the current flows in the direction from

Question # 4

The path of electron in Rutherford atomic model according to classical theory a.

Question # 5

Which animal did Erwin Schrodinger contemplate using in his famous thought experiment.

Question # 6

Neutrino9 is a particle with

Question # 7

What is the scale for measurement of Banbridge mass spectrograph.

Question # 8

The emission of electrons from a metal surface when exposed to light of suitable frequency is called.

Question # 9

Which of the following detectors can count fast and operate at low voltage.

Question # 10

Which one of the following is a convenient energy unit to express the energy of sub atomic particles.

Question # 11

The wavelength of Lyman series for hydrogen spectrum lies in the.

Question # 12

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

Question # 13

When Photon incident on a metal produce the emission of electrons the process is called.

Question # 14

The half life of a radioactive substance depend on.

Question # 15

Critical mass is the minimum mass needed for

Question # 16

The value of open loop gain for the amplifier is

Question # 17

X-rays are good for imagining

Question # 18

The SI unit of decay constant is.

Question # 19

At room temperature the potential difference between the two sides of depletion region for silicon is of the order of.

Question # 20

The scientific theory concerning the coming into existence of universe.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 A transistor can be used as
A. Oscillator
B. Amplifier
C. Switch
D. Both a and c
2 The rest mass of a particle is independent of the
A. Wavelength of the particle
B. Mass of the particle
C. Speed of the particle
D. Energy of the particle
3 Special theory of relativity deals with the events in the frames of reference which move with constant.
A. Time interval
B. Acceleration
C. Momentum
D. space interval
4 The angular speed of an electron in the nth orbit of Bohr's hydrogen atom is.
A. Directly proportional to n
B. Directly proportional to n2
C. Inversely proportional to n
D. Inversely proportional to n2
5 There are how many types of forces or interactions.
A. Two
B. Three
C. Four
D. Five
6 Which both elements are good for nuclear fission.
A. Thorium an uranium
B. Thorium and radium
C. Plutonium and uranium
D. Plutonium and throrium
7 Which of the following properties is not exhibited by X-rays.
A. Interference
B. Diffraction
C. Polarization
D. Deflection of electric field
8 The wavelength of Lyman series for hydrogen spectrum lies in the.
A. Visible region
B. Ultraviolet region
C. Infrared region
D. Far infrared region
9 During transition, atom cannot emit
A. Visible light
B. Ultraviolet radiation
C. Infrared radiations
D. gama rays
10 Cobalt -60 is a radioactive element with half life of 5.25 years. What fraction of the original sample will be left after 26 years.
A. 1/4
B. 1/8
C. 1/16
D. 1/32

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