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

The force that bonds protons and neutrons together int he nucleus despite the electrical repulsion of the protons is called.

Question # 2

The neutral atoms of all isotopes of the same element contain the same numbers of.

Question # 3

In fission reaction, heavy water is used as a

Question # 4

Which one the following is not a component of a Bipolar junction Transistor

Question # 5

During the alpha decay process

Question # 6

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

Question # 7

The electrons behave as wave because.

Question # 8

The number of electrons in U nucleus are.

Question # 9

Which of the following propagates at the same speed as velocity of light.

Question # 10

Transistor are made from

Question # 11

The unit of Rydberg constant R is

Question # 12

The most readily fissionable isotope of uranium has atomic mass of

Question # 13

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

Question # 14

In which of the following controlled nuclear chain reaction is used to liberate energy.

Question # 15

The Compton effect in X-rays proves that

Question # 16

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

Question # 17

The value of open loop gain for the amplifier is

Question # 18

The binding energy to pull the deuterium H apart into a proton and a neutron is equal to.

Question # 19

The capture of neutron by a proton results in the formation of.

Question # 20

When of the following radiations are not emitted by electron transitions in atoms.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Sub atomic paticles whihc does not experience strong nuclear force are.
A. hadrons
B. Photons
C. Leptons
D. Nucleons
2 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.
A. 2 mg
B. 4 mg
C. 8 mg
D. 18 mg
3 The capture of neutron by a proton results in the formation of.
A. Deuteron and gama rays
B. Deuteron and alpha particle
C. Triton and Beta particles
D. Tritron and X rays
4 The value of principal quantum number for an ionized atom is.
A. 13.6 eV
B. 27.2 eV
C. 54.4 eV
D. 100 eV
5 Which type of radiation would be stopped completely by a thin piece of cardboard.
A. Alpha particles
B. Beta particles
C. Gama rays
D. X -rays
6 During the alpha decay process
A. A neutron is emitted
B. a electron is emitted
C. A helium core is emitted
D. A proton core is emitted
7 The process of pair production will take place if the energy of photon is greater than.
A. 0.21 MeV
B. 0.51 MeV
C. 1.51 MeV
D. 1.21 MeV
8 The wavelength of X-rays is of the ofder of.
A. 10-14 m
B. 10-10 m
C. 10-9 m
D. 10-6 m
9 Which configuration is used to connect high impedance source to a low impedance lead.
A. CE
B. CB
C. CC
D. BE
10 In Compton's effect it was considered that X-rays consist of
A. Electrons
B. Holes
C. Neutrons
D. Protons

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