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

Tracer techniques make use of.

Question # 2

Which particle has zero charge and zero rest mass.

Question # 3

Which particle are not emitted by a radioactive substance.

Question # 4

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

Question # 5

NOR gate is a combination of.

Question # 6

Which particle is removed by a photon.

Question # 7

The helium nucleus does not contain

Question # 8

Mean life of a radioactive sample is 100 s its half life will be

Question # 9

Which of the following propagates at the same speed as velocity of light.

Question # 10

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

Question # 11

X-ray are

Question # 12

The molecular weight of D2O is

Question # 13

Usually in an operational amplifier the inputs used are of

Question # 14

Which experiment confirmed the de Broglie hypothesis.

Question # 15

In order to reduce uncertainty in momentum one must use light of.

Question # 16

In the experiment of photo electric effect the minimum frequency of photons at which electrons are emitted from a metal surface is called.

Question # 17

Nuclear force as compared to electrostatic force is.

Question # 18

The two elements with same number of electrons but different mass number are called.

Question # 19

A spectroscope sorts out

Question # 20

The absorption of X-rays in a given material follows.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Which of the following is not a mode of radioactive decay
A. Nuclear fusion
B. Alpha decay
C. Electron capture
D. Positron emission
2 Base current of a transistor is 1 mA and collector current is 99 mA What is emitter current.
A. 1 mA
B. 100 mA
C. 98 mA
D. 110 mA
3 The binary equivalent of 25 is
A. 111001
B. 11001
C. 1001
D. 10101
4 Ebers-Moll model describes the working of a
A. BJT
B. FET
C. MOSFET
D. UJT
5 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
6 What is the quantitative description of the effect of radiation on the living tissue.
A. Radiation dosimetry
B. Radioactive dating
C. Telemetry
D. Dosage
7 The total energy of the hydrogen atom is
A. zero
B. Infinite
C. positive
D. Negative
8 The SI unit of radioactivity is.
A. Becquerl
B. Curie
C. Joule
D. rutherford
9 Which of the following is not a mode of radioactive decay.
A. Positron emission
B. Electron capture
C. Fusion reaction
D. A decay
10 What will be excitation energy in the third orbit of hydrogen atom.
A. 0.66 eV
B. 0.85 eV
C. 1.5 eV
D. 5.4 eV

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