Atoms and Nuclei (BITSAT Physics): Questions 8 - 12 of 15

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Question number: 8

» Atoms and Nuclei » Nuclear Fission and Fusion

MCQ▾

Question

When a slow neutron goes sufficiently close to a U235 nucleus then the process takes place is

Choices

Choice (4) Response

a.

Fusionofnetutron

b.

FusionofU235

c.

FissionofU235

d.

Question does not provide sufficient data or is vague

Question number: 9

» Atoms and Nuclei » Half Life and Mean Life

MCQ▾

Question

The half-life of a radioactive is 3.6 days. How much of 20 milligram of that radioactive will remain after 40 days?

Choices

Choice (4) Response

a.

2.68×103mg

b.

4.31×103mg

c.

6.20×103mg

d.

9.76×103mg

Question number: 10

» Atoms and Nuclei » Nuclear Fission and Fusion

MCQ▾

Question

The large scale destruction that would be caused due to the use of nuclear weapons is known as –

Choices

Choice (4) Response

a.

Thermo nuclear reaction

b.

Neutron reproduction factor

c.

Nuclear holocaust

d.

All of the above

Question number: 11

» Atoms and Nuclei » Composition and Size of Nucleus

MCQ▾

Question

Sodium has body centered packing. Distance between two nearest atoms is 3.7. The lattice parameter is –

Choices

Choice (4) Response

a.

4.3

b.

3.8

c.

4.9

d.

3.4

Question number: 12

» Atoms and Nuclei » Radioactive Decay Law

MCQ▾

Question

In which sequence the radioactive radiations are emitted in the following nuclear reaction

zXAz+1YAz1KA4z1KA4

Choices

Choice (4) Response

a.

α,βandγ

b.

β,γandα

c.

γ,αandβ

d.

β,αandγ

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