R

Ram Sharma • 193.86K Points
Coach 

Q. Half power bandwidth is also called

(A) absolute bandwidth
(B) null to null bandwidth
(C) 3 db bandwidth
(D) zero db bandwidth
Correct : Option (C)

Explanation: 
 half power bandwidth is also called the 3 db bandwidth. it is defined as the interval between frequencies at which the psd has dropped to half power, or 3 db below the peak value.

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