Q.

Microwaves are used in Radars, why?

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answer is 1.

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Detailed Solution

Microwaves are electromagnetic waves of very short wavelength (10–3m to 0.3m). For this reason, they do not bend (diffract) around the corners of any obstacle coming in their path. Therefore, microwaves can be transmitted as a beam in a particular direction better than radio wave (λ > 0.1m)

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Microwaves are used in Radars, why?