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

  • Total Questions20

  • Time Allowed20

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PPSC Physics Topic 7 Modern Physics

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Question # 1

The half life of isotopes X is four days and its initial mass is 32 mg What mass of the isotope X will remain after twelve days.

Question # 2

Neither the position nor the momentum of a particle can be predicted with arbitrarily great precision is the statement of.

Question # 3

Why FET amplifiers are called voltage controlled devices.

Question # 4

The mass of proton is equal to.

Question # 5

The phenomenon of Compton's effect process that right has

Question # 6

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

Question # 7

Which circuit elements has two stable states and can be used to store information.

Question # 8

The tunnel effect makes possible

Question # 9

One gray is equal to.

Question # 10

Which BJT configurations used for signal inversion.

Question # 11

X-rays are absorbed maximum by

Question # 12

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.

Question # 13

Which uranium isotope having the atomic weights as given below is easily fissionable.

Question # 14

Mean life of a radioactive sample is 100 s its half life will be

Question # 15

The process of pair production will take place if the energy of photon is greater than.

Question # 16

As the mass number varies, which of the quantities does not change w.r.t nucleus.

Question # 17

Radioactivity is the phenomenon associated with the.

Question # 18

When a helium atom loses an electron it becomes.

Question # 19

Which temperature is required for the fusion of two nuclides.

Question # 20

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

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 Which particle has zero charge and zero rest mass.
A. Neutron
B. Proton
C. Electron
D. Photon
3 The SI unit of radioactivity is.
A. Becquerl
B. Curie
C. Joule
D. rutherford
4 Which of the following is not an electromagnetic wave.
A. game rays
B. Ultraviolet rays
C. Ultrasonic waves
D. Microwaves
5 The decay process in which an unstable nucleus splits into two fragments of comparable mass is known as.
A. Nuclear fission
B. nuclear fusion
C. Radioactivity
D. Carbon dating
6 The part of theory of relativity which deals with accelerated bodies is called.
A. special theory of relativity
B. General theory of relativity
C. Lorentz's theory of relativity
D. Galilean theory of relativity
7 The advantage of electron tube over a transistor is.
A. Its high efficiency
B. Its high gain
C. Low consumption of power
D. Low input impedance
8 Current gain of a CE amplifier is 50, ITS hfe is about
A. 25
B. 50
C. 75
D. 100
9 the alpha particle does not travel for enough in air.
A. Due to its intense ionization
B. Due to its large mass
C. Due to its high charge
D. Due to its Hight Ionization
10 The scientific theory concerning the coming into existence of universe.
A. Cosmology
B. Cosmogony
C. Cosmography
D. Cosmos

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