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

Which of the following are particle accelerators.

Question # 2

The possible values of principal quantum number are.

Question # 3

The output of two input OR gate is zero only when its.

Question # 4

Bohr's atomic model assumes

Question # 5

The particles equal in mass or greater than protons are called.

Question # 6

The ionization energy for hydrogen atom is

Question # 7

The most abundant isotope of neon is.

Question # 8

From which radiation it is most difficult to protect oneslelf.

Question # 9

Which of the following phenomenon is explained by the tunnel efffect.

Question # 10

In heavy atims the electrons are assumed to be arranged in.

Question # 11

The converse of pair production is

Question # 12

Transistor are made from

Question # 13

There are how many types of forces or interactions.

Question # 14

Which of the following radiations can penetrate 20 cm thick steel.

Question # 15

Which of the following phenomenon is observed in obtaining an X ray photograph of our hand.

Question # 16

When an electron and a positron are annihilated, then number of protons produced is.

Question # 17

The potential due to which an electron is lifted from gerund state to excited state is.

Question # 18

A spectroscope sorts out

Question # 19

For an electron or position the rest mass energy is equal to.

Question # 20

An important property of an ideal power supply is.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 LASER is a device which can produce.
A. Monochromatic beam of light
B. Coherent beam of light
C. An intense beam of light
D. All of the above
2 The process of conversation of a photon into an electron and a position is called.
A. Pair annihilations
B. Pair production
C. Photoelectric effect
D. Compton effect
3 An AND gate is.
A. Equivalent to a series switching circuit.
B. Equivalent to a parallel switching circuit
C. Equivalent ot universal gate
D. A reciprocal of NAND gate
4 Which one of the following has maximum frequency.
A. Visible light
B. Gama rays
C. Ultraviolet rays
D. Infrared rays
5 As oscillator is basically an amplifier with loop gain
A. Zero
B. Infinity
C. Less than unity
D. More than unity
6 Atomic reactor is based on
A. Controlled chain reaction
B. Uncontrolledly chain reaction
C. Nuclear fission
D. Nuclear fusion
7 A solid state detector is basically
A. A reverse biased p-n junction
B. A forward biased p-n junction
C. A p-n -p transistor
D. A n-p-n transistor
8 The wavelength of X-rays is of the ofder of.
A. 10-14 m
B. 10-10 m
C. 10-9 m
D. 10-6 m
9 Which of the following is the most commonly used regions of operations for a transistor.
A. Cut off
B. Saturation
C. Active
D. All of these
10 The result of the alpha particle scattering experiment gave evidence for which of the following.
A. Nuclear fusion
B. Radio active decay
C. Existence of isotopes
D. Nuclear atom

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