The resonant frequency of an IMPATT diode is given by:

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Q.) The resonant frequency of an IMPATT diode is given by:

(A) vd/2l

(B) vd/l

(D) vdd/4πl

Correct answer : Option (A) - vd/2l

Explanation:

 the resonant frequency of an impatt diode is given by the expression vd/2l. here vd is the carrier drift velocity; l is the length of the intrinsic region in the impatt diode.

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