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

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

Question # 2

An operational amplifier can be used as a

Question # 3

The maximum K.E. with which photoelectrons are emitted depends very strongly on the.

Question # 4

The unit Planck's constant is equivalent to that of.

Question # 5

On which factor cut off wavelength of X-rays coming from a Coolidge tube depends upon.

Question # 6

Why is a capacitor resistor combination used in oscillators in grid circuit.

Question # 7

Sub atomic particles which experience strong nuclear force are.

Question # 8

The radius of first Bohr's orbit for hydrogen atom is.

Question # 9

NOR gate is a combination of.

Question # 10

The mass of an helium nucleus is equal to.

Question # 11

The simple form of particle accelerator is.

Question # 12

As the mass number varies, which of the quantities does not change w.r.t nucleus.

Question # 13

The energy equivalent of 1 kg of matter a

Question # 14

In which of the following controlled nuclear chain reaction is used to liberate energy.

Question # 15

Work function is generally expressed in.

Question # 16

The binary equivalent of 25 is

Question # 17

Which type of amplifier causes minimum drain of power supply.

Question # 18

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

Question # 19

Which of the following detectors can count fast and operate at low voltage.

Question # 20

Magnetic field does not cause deflection in

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The two elements with same number of electrons but different mass number are called.
A. Isotones
B. Isobars
C. Isotopes
D. Isomers
2 Ebers-Moll model describes the working of a
A. BJT
B. FET
C. MOSFET
D. UJT
3 Which both elements are good for nuclear fission.
A. Thorium an uranium
B. Thorium and radium
C. Plutonium and uranium
D. Plutonium and throrium
4 The chemical behavior of an atom is determined by
A. Mass number
B. Number of Isotopes
C. Atomic number
D. Binding energy
5 LED is a p-n junction that emits
A. Visible light
B. X- rays
C. Ultraviolet light
D. electromagnetic waves
6 There are how many modes of operations of a BJT.
A. 2
B. 3
C. 4
D. 5
7 The photons emitted in inner shell transition are.
A. Alpha particle
B. Beta particle
C. Gama particle
D. Characteristic X-rays
8 The most familiar example of radioactive dating is.
A. Nitrogen dating
B. Carbon dating
C. Hydrogen dating
D. Helium dating
9 In potential for the material of cathode pure metals are rarely used because of their
A. Low reflecting power
B. High reflecting power
C. Low resolving power
D. High resolving power
10 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

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