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

Question # 2

In de Brogile model electron orbit must form

Question # 3

LASER is a device which can produce.

Question # 4

Which of the following quantities is discrete according to Bohr's hypothesis.

Question # 5

LASER beam my be measure very large distance because it is.

Question # 6

Radioactivity is the phenomenon associated with the.

Question # 7

The chemical behavior of an atom is determined by

Question # 8

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

Question # 9

Which temperature is required for the fusion of two nuclides.

Question # 10

The neutral atoms of all isotopes of the same element contain the same numbers of.

Question # 11

A gama ray of energy 1900 MeV is absorbed by

Question # 12

The scientific theory concerning the coming into existence of universe.

Question # 13

Which of the following phenomenon is observed in obtaining an X ray photograph of our hand.

Question # 14

A complete amplifier circuit made on a silicon chip and enclosed in a small capsule is

Question # 15

The bunding energy per nucleon for iron is.

Question # 16

The helium nucleus does not contain

Question # 17

For an electron or position the rest mass energy is equal to.

Question # 18

In which of the following studies x-rays are not helpful.

Question # 19

A unijunction transistor

Question # 20

The converse of pair production is

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Lissajou's figures are used in a Cathode Ray Oscilloscope while measuring.
A. Time period
B. Frequency
C. Voltage gain
D. phase angle
2 The bunding energy per nucleon for iron is.
A. zero
B. Maximum
C. Negative
D. Minimum
3 In a cloud chamber the Alpha particles leave
A. Dense, straight and continuous tracks
B. Only straight and continuous tracks
C. Thin and discontinuous tracks
D. Irregular tracks
4 There are how many types of forces or interactions.
A. Two
B. Three
C. Four
D. Five
5 Which of the following describes that the time interval between two events may be different in different of references
A. Simullaneously
B. Time dilation
C. Length contraction
D. Mass variation
6 The band width of an audio amplifier is.
A. 10 Hz to 10 kHz
B. 20 Hz to 54 Hz
C. 20 Hz to 20 kHz
D. 20 Hz to 60 kHz
7 The emission of electrons from a metal surface when exposed to light of suitable frequency is called.
A. Pair production
B. Compton effect
C. Photo electric effect
D. Zeeman effect
8 Which is the famous standard model of the universe.
A. the big bang
B. Casmos
C. Astronaut
D. The small stap
9 The relationship between mass number atomic number and neutron number is.
A. A = Z + N
B. A = Z - N
C. Z = A + N
D. N = Z - A
10 Which particle interact via all fundamental forces.
A. Leptons
B. Hadrons
C. Muons
D. mesons

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