1.

Why is an ammonia maser not useful in communication?(1) Because it has low power(2) Because itsfrequency is not convenient(3) Because the frequency is not stable(4) Because it is not continuous

Answer» <p style="text-align: justify;"><span style="color:#000000"><span style="font-family:Arial,Helvetica,sans-serif">The Correct option is (2) Because itsfrequency is not convenient</span></span></p>


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