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

The decay process in which an unstable nucleus splits into two fragments of comparable mass is known as.

Question # 2

Photocells are used for

Question # 3

In the fusion process, there are

Question # 4

One becquerel is equal to

Question # 5

In scattering experiment which force scatters alpha particle.

Question # 6

In a photocell, certain metals emit electrons for

Question # 7

Radio carbon in the atmosphere is produced by the bombardment of.

Question # 8

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

Question # 9

Which of the following is basic transistor configuration.

Question # 10

The half life of uranium -238 is

Question # 11

The ionization energy for hydrogen atom is

Question # 12

Which one the following is not a component of a Bipolar junction Transistor

Question # 13

Which of the following is the most commonly used regions of operations for a transistor.

Question # 14

How many terminals does a BJT have.

Question # 15

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

Question # 16

Which one of the following has the largest wavelength.

Question # 17

According to Max. Planck, energy is released or absorbed in discrete packets called.

Question # 18

Transistor are made from

Question # 19

The input resistance of a JFET is of the order of.

Question # 20

The angular speed of an electron in the nth orbit of Bohr's hydrogen atom is.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 When a platinum wire is heated of 1600 oC, it becomes
A. orange
B. Cherry red
C. Dull red
D. White
2 Which of the following detectors can count fast and operate at low voltage.
A. G.M Counter
B. Cloud chamber
C. Solid state detector
D. Bubble chamber
3 In the experiment of photo electric effect the minimum frequency of photons at which electrons are emitted from a metal surface is called.
A. Critical frequency
B. Typical frequency
C. Threshold frequency
D. Surface frequency
4 The rest mass of a particle is independent of the
A. Wavelength of the particle
B. Mass of the particle
C. Speed of the particle
D. Energy of the particle
5 Isotopes are the atoms of the same elements which contain equal number of.
A. Nucleus
B. Neutrons
C. Protons
D. Electrons
6 The working of cloud chamber is based in the presence of.
A. Super heated vapours
B. Liquid
C. Super saturated vapors
D. Unsaturated vapours
7 Compton scattering experiment seemed to indicate that radiation had
A. Wave nature
B. Particle nature
C. Wave particle nature
D. X-rays nature
8 Transistors with various combinations are widely used as switches in.
A. electric generators
B. Rectificers
C. Amplifiers
D. Computers
9 An operational amplifier have how many input terminals.
A. One
B. Two
C. Three
D. Four
10 Half life of a radioactive elements 10 minutes If the initial cont. rate is 368 counts per minute for what time count rate reaches 32 counts per minute.
A. 20 minutes
B. 40 minutes
C. 80 minutes
D. 120 minutes

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