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

When light of particular frequency is allowed to fall upon a metal surface electrons are emitted from a these emitted electrons are called.

Question # 2

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

Question # 3

Compton scattering experiment seemed to indicate that radiation had

Question # 4

An oscillator is basically an amplifier with loop gain

Question # 5

In a cloud chamber the Alpha particles leave

Question # 6

Which of the following is basic transistor configuration.

Question # 7

Nuclear force as compared to electrostatic force is.

Question # 8

Push pull amplifiers employ

Question # 9

The angle of scattering for which the Compton shift is maximum is.

Question # 10

The total energy of an electron in an orbit around the nucleus is.

Question # 11

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

Question # 12

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

Question # 13

The wavelength of Lyman series for hydrogen spectrum lies in the.

Question # 14

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

Question # 15

In n-p-n transistor the current flows in the direction from

Question # 16

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

Question # 17

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

Question # 18

If we use two diodes and a centre tapped transformer we eill get

Question # 19

The transition of inner shell electrons in heavy atoms gives rise to the emission of.

Question # 20

Which animal did Erwin Schrodinger contemplate using in his famous thought experiment.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Choose the one which acts as single inverter.
A. Common emitter
B. common collector
C. Common base
D. Diode
2 The SI unit of absorbed dose in.
A. Bel
B. Weber
C. Rem
D. Grey
3 An operational amplifiers will act as an inverting amplifier when the input signal is connected to.
A. Inverting terminal
B. Non inverting terminal
C. Earthened wire
D. Both a and b
4 The best shield against Gama rays would be of
A. Heavy water
B. Aluminium
C. Iron
D. Lead
5 Nuclear force exists between
A. Proton proton
B. Neutron -neutron
C. neutron -proton
D. All of these
6 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
7 The maximum energy of emitted photoelectron is measured by
A. the largest potential difference they can traverse
B. The current they produce
C. The potential difference they produce
D. The speed with they emerge
8 There are how many types of forces or interactions.
A. Two
B. Three
C. Four
D. Five
9 Which Isotopes is use din radioactive dating.
A. C12
B. C13
C. C14
D. C16
10 Which of the following is required for maintaining sustained chain reaction.
A. Neutrons
B. Protons
C. Electrons
D. Photons

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