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

Which particle interact via all fundamental forces.

Question # 2

In electromagnetic spectrum X-rays are next to.

Question # 3

Which temperature is required for the fusion of two nuclides.

Question # 4

Sub atomic particles which experience strong nuclear force are.

Question # 5

Hydrogen bomb is based on

Question # 6

One becquerel is equal to

Question # 7

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

Question # 8

The maximum K.E of photo electrons depends upon

Question # 9

What is the scale for measurement of Banbridge mass spectrograph.

Question # 10

According to Max. Planck, energy is released or absorbed in discrete packets called.

Question # 11

What is the relativistic version of the Schrodinger equation.

Question # 12

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

Question # 13

The bunding energy per nucleon for iron is.

Question # 14

The two elements with same number of electrons but different mass number are called.

Question # 15

Photocells are used for

Question # 16

An operational amplifiers will act as an inverting amplifier when the input signal is connected to.

Question # 17

The Rutherford atom according to classical theory is

Question # 18

Current gain of a CE amplifier is 50, ITS hfe is about

Question # 19

Positron are produced during.

Question # 20

What are isotopes.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Besides U 235 what else is needed for making as atomic bomb.
A. Electons
B. Protons
C. Neutrons
D. Photons
2 Which of the following is the most commonly used regions of operations for a transistor.
A. Cut off
B. Saturation
C. Active
D. All of these
3 the gain of an amplifier is independent of
A. The two externally connected resistances
B. What is happening inside the amplifier
C. Internal structure of the amplifier
D. All of the above
4 X-rays spectrum may be
A. Continuous spectrum
B. Discontinuous spectrum
C. Line spectrum
D. Continuous and line spectrum
5 Half life of a radioactive elements 10 minutes If the initial cont. rate is 368 counts per minute for what time count rate reaches 32 counts per minute.
A. 20 minutes
B. 40 minutes
C. 80 minutes
D. 120 minutes
6 The energy of neutrons obtained during a fission reaction is.
A. 0.1 MeV
B. 1 KeV
C. 1 MeV
D. Zero
7 Which given quantity remains the same in isotones.
A. Mass number
B. Atomic number
C. Number of neutrons
D. Number of protons
8 Which of the following is not a mode of radioactive decay.
A. Positron emission
B. Electron capture
C. Fusion reaction
D. A decay
9 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
10 On which factor cut off wavelength of X-rays coming from a Coolidge tube depends upon.
A. Target material
B. Accelerating voltage
C. Filament temperature
D. Separation between target and the filament

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