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

At what speed the mass of a body will be doubled.

Question # 2

The half life of a radioactive substance as compared to its mean lif eis.

Question # 3

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

Question # 4

Push pull amplifiers employ

Question # 5

Particle which can be added to the nucleus of an atom with changing its chemical properties are called.

Question # 6

What is the scale for measurement of Banbridge mass spectrograph.

Question # 7

The decay to form other nuclides by emitting particles and electromagnetic radiations by unstable nuclides is called.

Question # 8

The necessary condition for nuclear fusion is.

Question # 9

The molecular weight of D2O is

Question # 10

Which six particles and their antiparticles interact by the weak interaction.

Question # 11

Transistor stands for

Question # 12

One radian is equal to.

Question # 13

the wavelength of continuous X-rays is inversely proportional to.

Question # 14

The splitting of atomic energy levels and the associated spectrum lines when the atoms are placed in a magnetic field is called.

Question # 15

The reciprocal of decay constant lamda of a radioactive element is.

Question # 16

What is the energy equivalent to amu in Me V

Question # 17

In the experiment of production of X rays electrons are accelerated towards the anode by

Question # 18

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

Question # 19

An important property of an ideal power supply is.

Question # 20

Lines of Balmer series are emitted by hydrogen atom when the electron jumps from

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 During transition, atom cannot emit
A. Visible light
B. Ultraviolet radiation
C. Infrared radiations
D. gama rays
2 Alpha particles emitted from a radioactive material are.
A. He nucliei
B. H -nucliei
C. Li nucliei
D. B nucliei
3 The angle of scattering for which the Compton shift is maximum is.
A. 0 o
B. 45 o
C. 80 o
D. 180 o
4 One gray is equal to.
A. 1 J-1 kg -1
B. 1 J -1 kg -2
C. 1 J 1 -g-1
D. 1 j kg -2
5 Which of the following properties is not exhibited by X-rays.
A. Interference
B. Diffraction
C. Polarization
D. Deflection of electric field
6 In which of the following studies x-rays are not helpful.
A. Crystal structure
B. Crystal surface
C. Crystal symmetry
D. Crystal atoms
7 The electron behave an waves because
A. They can be diffracted by a crystal
B. They can produce ions in gases
C. They can be deflected by magnetic field
D. They can be deflected by electric field
8 Binding energy per nucleon is.
A. Greatest for heavy nuclei
B. Least for heavy nuclei
C. Greatest for light nuclei
D. Greatest for medium weight nuclei
9 Which animal did Erwin Schrodinger contemplate using in his famous thought experiment.
A. mouse
B. Cat
C. Dog
D. Rabbit
10 Ebers-Moll model describes the working of a
A. BJT
B. FET
C. MOSFET
D. UJT

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