ECAT Pre Computer Science Chapter 21 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 21 Nuclear Physics

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

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ECAT Physics Chapter 21 Nuclear Physics

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Question # 1

Hydrogen atom with only one proton and one neutron in its nucleus, and one electron, is called

Question # 2

A pair of quark and antiquark makes a:

Question # 3

Charge on neutron is

Question # 4

Proton was discovered by Rutherford in

Question # 5

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

Question # 6

The energy acquired by a mass of 1g moving with the speed of light is

Question # 7

The isotope/s of hydrogen is /are:

Question # 8

Pair production take place when energy ofγ-rays photon is

Question # 9

Charge on proton is

Question # 10

For Protium, the mass defect is:

Question # 11

The range of particle depends upon the factor

Question # 12

The emission of radiations take place in elements, having charge number greater than

Question # 13

Gamma rays consist of steam of

Question # 14

The most abundant isotope of neon is

Question # 15

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

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 Nucleus of a hydrogen atom may contain:
A. One neutron only
B. Two protons and one neutron
C. Two protons and two neutrons
D. Aany of above
2 The energy is found from Einstein's mass energy relation is called
A. binding energy of electron
B. binding energy of proton
C. binding energy of neutron
D. binding energy of nucleus
3 The chemical behaviour of an atom is determined by
A. binding energy
B. atomic number
C. mass number
D. number of isotopes
4 The amount of energy equivalent to 1 a.m.u is
A. 9.315 Mev
B. 93.15 Mev
C. 931.5 Mev
D. 2.22 Mev
5 A particle having the mass of electron and charge of a proton is called a
A. photon
B. position
C. antiproton
D. antineutrino
6 1 amu is equal to
A. 1.66 x 10-24kg
B. 1.66 x 10-19kg
C. 1.66 x 10-34kg
D. 1.66 x 10-27kg
7 How much time, theα-particle more massive than an electron
A. 600
B. 7000
C. 5000
D. 15000
8 The distance travelled byα-particle in a medium before coming to rest, is called
A. range ofγ-particle
B. range of neutrons
C. range of particle
D. none of these
9 Which are not the elementary particles?
A. Photons
B. Leptons
C. Hadrons
D. Quarks
10 Rate of decay is actually described by.
A. Half line
B. Decay constant
C. Mean life
D. Total life

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