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

00:00
Question # 1

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

Question # 2

The possible values of principal quantum number are.

Question # 3

The force that bonds protons and neutrons together int he nucleus despite the electrical repulsion of the protons is called.

Question # 4

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

Question # 5

Compton scattering experiment seemed to indicate that radiation had

Question # 6

Ionization of a hydrogen atom originally in its ground state takes a minimum out of energy equal to.

Question # 7

Ebers-Moll model describes the working of a

Question # 8

Which given quantity remains the same in isotones.

Question # 9

Which term given below refers to the concept moving clocks run slower than clocks at rest w.r.t an observer.

Question # 10

Which of the following radiations will burn human skin

Question # 11

The loss of mass in a.m.u in a nuclear change can be calculated from energy involved in MeV by

Question # 12

The strength of photo electric current depends upon.

Question # 13

A single quantum of electromagnetic radiation is termed as.

Question # 14

The process of energy generation in sun and stars is.

Question # 15

One rem is equal to.

Question # 16

The advantage of electron tube over semiconductor is.

Question # 17

The maximum energy of emitted photoelectron is measured by

Question # 18

Which uranium isotope having the atomic weights as given below is easily fissionable.

Question # 19

Which of the following are electromagnetic waves.

Question # 20

The energy equivalent of 1 kg of matter a

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The process by which nuclei emit a ,b and gama rays in order to attain stability is called.
A. Radioactive disintegration
B. Radio activity
C. B decay
D. Radioactive transmulation
2 Specially designed solid state detector can be used to detect.
A. Alpha particles
B. Beta particles
C. Gama rays
D. X- rays
3 Which type of amplifier causes minimum drain of power supply.
A. Class -A
B. Class -B
C. Class-C
D. Class -AB
4 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
5 The two elements with same number of electrons but different mass number are called.
A. Isotones
B. Isobars
C. Isotopes
D. Isomers
6 The energy delivered to the tissue per unit mass is called the absorbed dose of.
A. X rays
B. gama rays
C. Radiation
D. energy
7 Which experiment confirmed the de Broglie hypothesis.
A.
Double slit experiment
B. Division germier experiment
C. Schrodinger's Cat experment
D. Bohr's experiment
8 Hydrogen bomb is based on
A. Controlled chain reaction
B. Uncontrolled chain reaction
C. Nuclear fusion
D. Nuclear fission
9 Mean life of a radioactive sample is 100 s its half life will be
A. 0.693 s
B.
1 s
C. 6.93 s
D. 69.3 s
10 What is the quantitative description of the effect of radiation on the living tissue.
A. Radiation dosimetry
B. Radioactive dating
C. Telemetry
D. Dosage

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