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 binding energy per nucleon for uranium is about.

Question # 2

A logic circuit with one input and one output that inverts the input signal at the output is.

Question # 3

The critical mass of a fissionable material is.

Question # 4

The energy delivered to the tissue per unit mass is called the absorbed dose of.

Question # 5

The unit generally used for measuring astronomical distances is.

Question # 6

A device used to determine mass of an isotope quite accurately is known as.

Question # 7

The chemical behavior of an atom is determined by

Question # 8

Which of the following is its own anti particle.

Question # 9

Radioactivity is the phenomenon associated with the.

Question # 10

The path of Gama rays in Wilson cloud chamber is

Question # 11

The particles less in mass than protons are

Question # 12

If the base emitter junction is forward biased and base collector junction is reverse biased the BJT is in.

Question # 13

the alpha particle does not travel for enough in air.

Question # 14

The band width of an audio amplifier is.

Question # 15

The particles equal in mass or greater than protons are called.

Question # 16

Which of the following configuration of BJTs gives both voltage gain and current gain.

Question # 17

A single quantum of electromagnetic radiation is termed as.

Question # 18

the gain of an amplifier is independent of

Question # 19

Lissajou's figures are used in a Cathode Ray Oscilloscope while measuring.

Question # 20

One radian is equal to.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 The total energy of an electron in an orbit around the nucleus is.
A. Zero
B. Unity
C. Infinity
D. Negative
3 The Rutherford atom according to classical theory is
A. Stable
B. Unstable
C. Partially stable
D. Quantized
4 In the experiment of photo electric effect the minimum frequency of photons at which electrons are emitted from a metal surface is called.
A. Critical frequency
B. Typical frequency
C. Threshold frequency
D. Surface frequency
5 White light a tungsten filament lamp is passed through sodium vapor and viewed through a diffraction gritting Which of the following best describes the spectrum which would be seen.
A. Coloured lines on a black background
B. Coloured lines on a white background
C. Dark lines on a coloured background
D. Dark lines on a white background
6 Which of the following is required for maintaining sustained chain reaction.
A. Neutrons
B. Protons
C. Electrons
D. Photons
7 The energy in electron volts necessary to remove the most loosely bound electron from the neutral atom is known as.
A. Faraday energy
B. Wave number
C. Ionization Potential
D. Excitation potential
8 Which given quantity remains the same in isotones.
A. Mass number
B. Atomic number
C. Number of neutrons
D. Number of protons
9 An important property of an ideal power supply is.
A. Infinite internal resistance
B. Zero internal resistance
C. Large output resistance
D. Small output resistance
10 Nuclear force as compared to electrostatic force is.
A. Weaker and long range
B. Weaker and short range
C. Stronger and longer range
D. Stronger and short range

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