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Assertion             :       Only microwaves are used in rada
Question

Assertion             :       Only microwaves are used in radar. Reason                 :       Because microwaves have very small wavelength. 

A
If both assertion and reason are true and the reason is the correct explanation of the assertion.

B
If both assertion and reason are true but reason is not the correct explanation of the assertion.

C
If assertion is true but reason is false.

D
If the assertion and reason both are false.

E
If assertion is false but reason is true.

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Assertion             :       Only microwaves are used in radar. Reason                 :       Because microwaves have very small wavelength. 
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Text SolutionText solutionverified iconVerified

            In a radar, a beam signal is needed in particular direction which is possible if wavelength of wave is very small. Since the wavelength of microwaves is a few millimeter, hence they are used in radar.
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Question Text
Assertion             :       Only microwaves are used in radar. Reason                 :       Because microwaves have very small wavelength. 
Answer TypeText solution:1
Upvotes150