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

The value of open loop gain for the amplifier is

Question # 2

Critical mass is the minimum mass needed for

Question # 3

The critical mass of a fissionable material is.

Question # 4

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

Question # 5

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

Question # 6

48 days after the receipt the amount of iodine -131 left behind is only.

Question # 7

The gama rays have

Question # 8

What is the scale for measurement of Banbridge mass spectrograph.

Question # 9

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

Question # 10

The resistance between(+) and (-) inputs of an amplifier is.

Question # 11

The loss of mass in a.m.u in a nuclear change can be calculated from energy involved in MeV by

Question # 12

In CC configuration voltage gain is.

Question # 13

During the alpha decay process

Question # 14

What is the overall gain, if three amplifiers each with a gain of 30 are cacaded.

Question # 15

The maximum energy of emitted photoelectron is measured by

Question # 16

In annitilation of matter, positron and electron pair disappears into two

Question # 17

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

Question # 18

Alpha particles are used for the treatment of skin of a patient due to.

Question # 19

One particle having zero mass and zero charge is.

Question # 20

The transition of inner shell electrons in heavy atoms gives rise to the emission of.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The mass of an alpha particle is.
A. 2 u
B. 4 u
C. 6 u
D. 8 u
2 A deuteron is
A. A type of proton
B. A proton neutron bounded to gather.
C. A type of beta particle
D. A type of neutron
3 Lissajou's figures are used in a Cathode Ray Oscilloscope while measuring.
A. Time period
B. Frequency
C. Voltage gain
D. phase angle
4 The process of conversation of a photon into an electron and a position is called.
A. Pair annihilations
B. Pair production
C. Photoelectric effect
D. Compton effect
5 The angle of scattering for which the Compton shift is maximum is.
A. 0 o
B. 45 o
C. 80 o
D. 180 o
6 At high temperature a body generally emits redactions of.
A. Small wavelengths
B. Long wavelengths
C. Moderates wavelengths
D. Zero wavelengths
7 The change in wavelength of an X-ray when scattered from an electron is called.
A. Compton shift
B. Doppler shift
C. Stefan's law
D. Fraunhofer lines
8 The energy in an electromagnetic wave is carried in the units called.
A. Protons
B. Electrons
C. Neutrons
D. Nucleus
9 In a photocell, certain metals emit electrons for
A. Visible light
B. X-rays
C. Infrared light
D. Ultraviolet light
10 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

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