Download Aptitude Crack
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Communication Systems - Engineering

Q1:

Assertion (A): EM waves are attenuated as they travel outward from a source Reason (R): Both field intensity and power density follow inverse square law.

A Both A and R are correct and R is correct explanation of A

B Both A and R are correct but R is not correct explanation of A

C A is correct but R is wrong

D A is wrong but R is correct

ANS:A - Both A and R are correct and R is correct explanation of A

As per inverse square law, power is inversely proportional to square of distance.