##### 22.&nbsp; The phase response of a passband wav...

22.  The phase response of a passband waveform at the receiver is given by

$\phi(f)=-2\pi\alpha(f-f_c)-2\pi\beta f_c$

Where fc is the centre frequency, and and α β are positive constants. The actual signal propagation delay from the transmitter to receiver is

(A) $\alpha-\beta\over \alpha+\beta$

(B) $\alpha\beta\over \alpha+\beta$

(C) α

(D) β

Hint:

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