Microwave Solid State Devices – 1 – 1

1. Which type of diodes does not ordinarily operate with reverse bias ?

(a) varactor
(b) IMPATT
(c) snap-off
(d)
 tunnel

ANSWER

EXPLANATION

2. Which diode is a popular microwave oscillator ?

(a) gunn
(b) varactor
(c) hot carrier
(d) 
IMPATT

ANSWER

EXPLANATION

3. ………….. is a popular microwave mixer diode.

(a) gunn
(b) varactor
(c) hot carrier
(d)
 IMPATT

ANSWER

EXPLANATION

4. Varactor and step-recovery diodes are widely used in what type of circuit ?

(a) amplifier
(b) oscillator
(c) frequency multiplier
(d) mixer

ANSWER

EXPLANATION

5. MASER finds application in :

(a) Opto electronics
(b) Fibre optics
(c) Telephones
(d) 
All of the above

ANSWER

EXPLANATION

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