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

The binary equivalent of 25 is

Question # 2

Which of the following is the most massive particle.

Question # 3

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

Question # 4

An increase in frequency above threshold frequency results in.

Question # 5

When an object moves with a very high speed the length in the direction of motion.

Question # 6

A deuteron is

Question # 7

A freshly made sample of radioactive material gives a count rate of 8,000 counts per minute After twenty days it gives a count rate of 500 counts per minute What is the half life of the materials.

Question # 8

The phenomenon of Compton's effect process that right has

Question # 9

Cobalt -60 is a radioactive element with half life of 5.25 years. What fraction of the original sample will be left after 26 years.

Question # 10

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

Question # 11

When using the formula E = h lambda what unit should energy have.

Question # 12

The SI unit of absorbed dose in.

Question # 13

As oscillator is basically an amplifier with loop gain

Question # 14

Particle which can be added to the nucleus of an atom with changing its chemical properties are called.

Question # 15

One gray is equal to.

Question # 16

Which of the following has greatest binding energy per nucleon.

Question # 17

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

Question # 18

For the normal operation of transistor the emitter base junction is always.

Question # 19

Which configuration is used to connect high impedance source to a low impedance lead.

Question # 20

The relationship between mass number atomic number and neutron number is.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Photocells are used for
A. Security systems
B. Counting systems
C. Automatic door system
D. All of the above
2 Which experiment confirmed the de Broglie hypothesis.
A.
Double slit experiment
B. Division germier experiment
C. Schrodinger's Cat experment
D. Bohr's experiment
3 The scientific theory concerning the coming into existence of universe.
A. Cosmology
B. Cosmogony
C. Cosmography
D. Cosmos
4 Phenomenon of radioactivity is due to disintegration of.
A. Proton
B. Neutron
C. electron
D. nucleus
5 Which one of the following gates in a a universal gate.
A. OR
B. AND
C. NOT
D. NAND
6 An increase in frequency above threshold frequency results in.
A. Increase in photo electric current
B. Increase in K.E. of electrons
C. Decrease in photoelectric current
D. Decreases in K.E. of electrons
7 x-rays cannot produce
A. Photoelectron
B. Compton electron
C. Electron positron pair
D. All of these
8 Critical mass is the minimum mass needed for
A. Fusion
B. H-Bomb
C. Chain reaction
D. Binding energy
9 The absorption of X-rays in a given material follows.
A. A parabola path
B. Is straight line
C. An exponential curve
D. A circle
10 The exitance of more than one distinct state with the same energy is called.
A. Exigency
B. Degeneracy
C. Normally
D. Emergency

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