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

Mass of neutron is

Question # 2

For an atom having atomic number Z and atomic weight A, the number of electron in an atoms

Question # 3

β-particles are easily deflected by collisions than heavy

Question # 4

1 amu is equal to.

Question # 5

How many isotopes of helium are present?

Question # 6

Mass of proton is

Question # 7

γ-rays behave like a particle because they explain the

Question # 8

Marie curie and Pierre curie discovered:

Question # 9

The nuclei of an element having the same charge number but different mass numbers are called:

Question # 10

Nucleus of a hydrogen atom may contain:

Question # 11

The missing mass which is converted to energy in the formation of nucleus, is called

Question # 12

Referring to the above figure, the binding energy per nucleon increases upto mass number equal to:

Question # 13

Rate of decay is actually described by.

Question # 14

U-238 present in the natural uranium is about:

Question # 15

When radioactive nucleus emits aβ-particle, the proton-neutron ratio

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 The nucleus/nuclei of hydrogen is/are:
A. Proton
B. Deuteron
C. Triton
D. All of these
2 Neutron was discovered in
A. 1915
B. 1920
C. 1925
D. 1932
3 The range of particle depends upon the factor
A. charge, mass and energy of particle
B. density of medium
C. ionization potential of the atoms
D. all the above
4 β-particles are easily deflected by collisions than heavy
A. α-particles
B. β-particles
C. γ-particles
D. none of these
5 Neutrons are
A. positive charge
B. negatively charged
C. massless
D. neutral
6 Radioactivity was discovered by:
A. Becquerel
B. Marie curie
C. Pierre curie
D. All of them
7 Radioactivity is
A. self disruptive activity
B. spontaneous activity
C. exhibited by all elements under proper conditions
D. both 'a' and 'b'
8 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
9 Neutron was disvovered by:
A. Rutherford in 1920
B. Chadwick in 1922
C. Bohr in 1913
D. Compton in 1927
10 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

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