AIIMS (All India Institute of Medical Sciences) Physics: Questions 228 - 231 of 500

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Question number: 228

» Magnetic Effects of Current and Magnetism » Earth's Magnetic Field

Appeared in Year: 2004

Assertion-Reason▾

Question

Assertion (Ꭺ)

The true geographic north direction is found by using a compass needle.

Reason (Ꭱ)

The magnetic meridian of the earth is along the axis of rotation of the earth.

Choices

Choice (4) Response

a.

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

b.

Ꭺ is false but Ꭱ is true

c.

Ꭺ is true but Ꭱ is false

d.

Both Ꭺ and Ꭱ are false

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Question number: 229

» Dual Nature of Matter and Radiation » De-Broglie Relation

Appeared in Year: 2005

Assertion-Reason▾

Question

Assertion (Ꭺ)

The energy (E) and momentum (p) of a photon are related by.

Reason (Ꭱ)

The photon behaves like a particle.

Choices

Choice (4) Response

a.

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

b.

Ꭺ is true but Ꭱ is false

c.

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

d.

Both Ꭺ and Ꭱ are false

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Question number: 230

» Atoms and Nuclei » Binding Energy Per Nucleon

Appeared in Year: 2004

Assertion-Reason▾

Question

Assertion (Ꭺ)

Nuclear binding energy per nucleon is in the order

Reason (Ꭱ)

Binding energy per nuclear increases linearly with difference in number of neutrons and protons.

Choices

Choice (4) Response

a.

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

b.

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

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are false

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Question number: 231

» Communication System » Sky and Space Wave Propagation

Appeared in Year: 2005

Assertion-Reason▾

Question

Assertion (Ꭺ)

Television signals are received through sky-wave propagation.

Reason (Ꭱ)

The ionosphere reflects electromagnetic waves of frequencies greater than a certain critical frequency.

Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are false

c.

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

d.

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

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