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Amplitude of a Wave

A : The maxim...

Question

A : The maximum range of coverage by ground wave propagation is limited to a few MHz
R : The attenuation of ground wave increases very rapidly with frequency

A

Assertion and reason are true and reason is the correct explanation of assertion

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B

Assertion and reason are true but reason is not correct explanation of assertion

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C

Assertion is true but reason is false

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D

Assertion is false but Reason is true.

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Solution

The correct option is A Assertion and reason are true and reason is the correct explanation of assertion
High frequency waves are not reflected by the atmosphere, thus, the maximum range of coverage by ground wave propagation is limited to a few MHz. Noise is just high frequency waves, whose interference with high frequency signals is more. Thus, the attenuation of ground wave is increased very rapidly with frequency.

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Q. Read the assertion and reason carefully to mark the correct option out of the options given below:
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Reason : Short waves are reflected by ionosphere
(a)If both assertion and reason are true and the reason is the correct explanation of the assertion.
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Q. (i)
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Reason: A figure formed by straight lines only is called a rectilinear figure.
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Assertion (A): Steel is more elastic than rubber.

Reason (R) : Under a given deforming force, steel is deformed less than rubber.

A) Both Assertion and Reason are true and the reason is correct explanation of the assertion
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Q. Assertion: 3 + 7 = 9 is a statement.
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Amplitude of a Wave

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