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

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

Question # 2

In order to reduce uncertainty in momentum one must use light of.

Question # 3

The half life of a radioactive substance depend on.

Question # 4

In electromagnetic spectrum X-rays are next to.

Question # 5

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

Question # 6

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

Question # 7

X-rays are

Question # 8

Which of the following radiations will burn human skin

Question # 9

The band width of an audio amplifier is.

Question # 10

The energy that must be added to separate the nucleus is called.

Question # 11

A single quantum of electromagnetic radiation is termed as.

Question # 12

The gama rays have

Question # 13

Most widely used types of gas LASER are

Question # 14

A darling ion amplifier is characterized by

Question # 15

The hyperfine lines in the spectrum relates to

Question # 16

X-ray are

Question # 17

Cs - 137 is a radioisotope used ot determine the thickness of the walls of steel pipes Cs 137 is chosen because it emits

Question # 18

The Compton effect in X-rays proves that

Question # 19

X-rays used for

Question # 20

The input exultation for a JFET is

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 An example of continuous spectrum is.
A. Black body radiation spectrum
B. Molecular spectra
C. Atomic spectra
D. All of the above
2 Which particle interact via all fundamental forces.
A. Leptons
B. Hadrons
C. Muons
D. mesons
3 At room temperature the potential difference between the two sides of depletion region for silicon is of the order of.
A. 0.3 v
B. 0.5 V
C. 0.7 V
D. 0.9 V
4 Which of the following is invariant under Galilean transformation.
A. Velocity
B. Impulse
C. Momentum
D. Distance
5 The SI unit of absorbed dose in.
A. Bel
B. Weber
C. Rem
D. Grey
6 Which six particles and their antiparticles interact by the weak interaction.
A. Leptons
B. Hadrons
C. Muons
D. pi mesons
7 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
8 Which experiment is a demonstration that matter and energy can display properties of both waves and particles.
A. young's double slit experiment
B. Division germier experiment
C. Heisenberg's uncertainty experiment
D. Stern Gerlach experiment
9 Why is a capacitor resistor combination used in oscillators in grid circuit.
A. To generate oscillation
B. To bias the grid automatically
C. To amplify oscillations
D. To sustain the oscillations.
10 Specially designed solid state detector can be used to detect.
A. Alpha particles
B. Beta particles
C. Gama rays
D. X- rays

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