AIIMS 2019 Physics Antenna Theory Assertion Reason Question
Assertion: For communication antenna length should be comparable to λ. (ℓ ∼ λ) Reason: It leads to maximum power
If both assertion and reason are true and reason is correct explanation of assertion.
If both assertion and reason are true and reason is not correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Correct Answer
Detailed Explanation
The assertion that the antenna length should be comparable to the wavelength (ℓ ∼ λ) is true, as this condition ensures efficient radiation and reception of electromagnetic waves. However, the reason provided, which states that this leads to maximum power, is misleading; while a proper length does enhance performance, it does not directly correlate to maximum power output. Option A is incorrect because the reason does not adequately explain the assertion, while option B is wrong as it implies the reason is a valid explanation. Option D is incorrect since the assertion is indeed true.
Found an issue with this question?