ECAT Pre Engineering Physics Chapter 21 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 21 Nuclear Physics

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 21 Nuclear Physics

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Physics ECAT Pre Engineering Chapter 21 Nuclear Physics

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Question # 1

The reciprocal of decay constant λ of a radioactive material is:

Question # 2

Nucleus of a hydrogen atom may contain:

Question # 3

The nucleous of uranium -235 differs from a nucleous of a uranium -238 in that the later contains

Question # 4

A mass difference of 0.0012 u is equivalent to and energy of:

Question # 5

In his experiment on nuclear reactions, Rutherford bombardedα particles on:

Question # 6

Gamma rays consist of steam of

Question # 7

γ-rays behave like a particle because they explain the

Question # 8

Rutherford performed an experiment on nuclear reactions in:

Question # 9

The half lie of radium-226 is

Question # 10

Pair production take place when energy ofγ-rays photon is

Question # 11

Radioactivity

Question # 12

During the nuclear changes, the law/s of conservation that hold/s are that of:

Question # 13

Curie is a unit of

Question # 14

Different radioactive material have

Question # 15

The total charge of any nucleus is given as

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 1 amu is equal to.
A. 1.66 x 10-24kg
B. 1.66 x 10-19kg
C. 1.66 x 10-24kg
D. 1.66 x 10-27kg
2 Radioactivity was discovered by:
A. Becquerel
B. Marie curie
C. Pierre curie
D. All of them
3 A particle having the mass of electron and charge of a proton is called a
A. photon
B. position
C. antiproton
D. antineutrino
4 Nucleus consists of
A. proton and neutron
B. protons and electron
C. electron and neutron
D. protons only
5 For an atom having atomic number 'Z' and atomic weight 'A', the number of neutrons in the nucleous is
A. A - Z
B. A
C. Z
D. A + Z
6 Which of these is not a radiation detector
A. Wilson cloud chamber
B. cyclotron acceleration
C. Geiger Miller counter
D. solid state detector
7 The half lie of radium-226 is
A. 238 years
B. 4.5 x 109days
C. 1620 years
D. 332 years
8 A pair of quark and antiquark makes a:
A. Meson
B. Baryon
C. Proton
D. Neutron
9 For an atom having atomic number Z and atomic weight A, the number of electron in an atoms
A. A - Z
B. A + Z
C. Z
D. A
10 Neutron was disvovered by:
A. Rutherford in 1920
B. Chadwick in 1922
C. Bohr in 1913
D. Compton in 1927

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