Atoms and Nuclei (AIIMS (All India Institute of Medical Sciences) Physics): Questions 14 - 17 of 32

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Question number: 14

» Atoms and Nuclei » Nuclear Fission and Fusion

Appeared in Year: 2003

Assertion-Reason▾

Assertion (Ꭺ)

Neutrons penetrate matter more readily as compared to protons.

Reason (Ꭱ)

Neutrons slightly more massive than protons

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

Question number: 15

» Atoms and Nuclei » Nuclear Fission and Fusion

Appeared in Year: 2005

Assertion-Reason▾

Assertion (Ꭺ)

It is not possible to use 35Cl as the fuel for fusion energy.

Reason (Ꭱ)

The binding energy of 35Cl is too small.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Ꭺ is false but Ꭱ is true

Question number: 16

» Atoms and Nuclei » Binding Energy Per Nucleon

Appeared in Year: 2006

Assertion-Reason▾

Assertion (Ꭺ)

The binding energy per nucleon, for nuclei with atomic mass number Equation , decreases with A.

Reason (Ꭱ)

The nuclear forces are weak for heavier nuclei.

Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Ꭺ is false but Ꭱ is true

Question number: 17

» Atoms and Nuclei » Nuclear Fission and Fusion

Appeared in Year: 2004

Assertion-Reason▾

Assertion (Ꭺ)

Heavy water is preferred over ordinary water as a moderator in reactors.

Reason (Ꭱ)

Heavy water used for slowing down the neutrons; has lesser absorption probability of neutrons than ordinary water.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Ꭺ is false but Ꭱ is true

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

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