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

An operational amplifier can be used as a

Question # 2

At high temperature a body generally emits redactions of.

Question # 3

Which type of radiation would be stopped completely by a thin piece of cardboard.

Question # 4

An operational amplifiers will act as an inverting amplifier when the input signal is connected to.

Question # 5

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

Question # 6

The energy in electron volts necessary to remove the most loosely bound electron from the neutral atom is known as.

Question # 7

The emission of electrons from a metal surface when exposed to light of suitable frequency is called.

Question # 8

X-rays travel with

Question # 9

The minimum amount of energy in an individual electron has to gain to escape from a particular surface is called.

Question # 10

The continuous x rays spectrum is obtained due to

Question # 11

The ionization potential of hydrogen atom is.

Question # 12

In fission reaction, heavy water is used as a

Question # 13

Which particle has zero charge and zero rest mass.

Question # 14

Which six particles and their antiparticles interact by the weak interaction.

Question # 15

X-ray are

Question # 16

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

Question # 17

Ebers-Moll model describes the working of a

Question # 18

In the fusion process, there are

Question # 19

When a platinum wire is heated of 1600 oC, it becomes

Question # 20

The reciprocal of decay constant lamda of a radioactive element is.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The particles equal in mass or greater than protons are called.
A. Mesons
B. Bosons
C. Baryons
D. Nucleons
2 The most readily fissionable isotope of uranium has atomic mass of
A. 234
B. 235
C. 236
D. 238
3 x-rays cannot produce
A. Photoelectron
B. Compton electron
C. Electron positron pair
D. All of these
4 Radioactive decay series can be represents on
A. Smith chart
B. Segre chart
C. Logarithmic chart
D. Carbon paper
5 The energy that must be added to separate the nucleus is called.
A. Critical energy
B. Binding energy
C. Gravitational energy
D. Electrostatic energy
6 Which of the following radiations will burn human skin
A. Infrared
B. Ultraviolet
C. X rays
D. Alpha particles
7 Usually in an operational amplifier the inputs used are of
A. Equal voltage and same polarity
B. Equal voltage and opposite polarity
C. Different voltage and same polarity
D. Different voltage and opposite polarity
8 X-rays are also used for
A. Ultrasound imaging
B. endoscopy
C. Computerized tomography scanning
D. Magnetic resonance imaging scanning
9 The value of open loop gain for the amplifier is
A. zero
B. very low
C. very high
D. of an intermediate vaue
10 The process of energy generation in sun and stars is.
A. Fusion of heavy nuclei
B. fusion of light nuclei
C. Fission of light nuclei
D. Solar panels

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