A240 ke
B:-3 MHz

एवय

D:26 MHz

Correct Answer:- Option-C

‘Question13:-In a gallium arsenide LED, of the photons incident from the GaAs on the GaAs-air interface are reflected back in to the semiconductor. Refractive index of
GaAs (at a wavelength 700 nm)= 3.50,

636ھ
2:596
0.31
‎D:-48%‏
‎Correct Answer:-Question Cancelled‏
‎Question14:-The rate of change of output voltage of an op-amp integrator, in response to a step input is set by‏
‎‘AcRC time constant‏
‎B:-the current through the capacitor‏
‎೦-೮ amplitude of the step output‏
‎Dell the above‏
‎Correct Answer:- Option-D‏
‎Question15:-For the given n-channel JFET circuit, , .8mA . What are the values of Vp. and Vs‏

ಹಿಗ್ಗ 25.210. 300
8:1; 2200010. 23121
ಯ್ಯ, 23/20. ಎ೩00/
ലമ

Correct Answer: Option ®

Question16:-The antenna current of an AM transmitter is 10 A when only the carrier is sent. Ifthe transmitter current increases to 10.87 A on modulation with a single sine wave, what
will be the percentage modulation?

13%
B:-36%
6
6
Correct Answer:- Option-C
Question17:-An amplifier with resistive negative feedback has two left half plane poles in its open loop transfer function. The amplifier
‘Acwill be stable for all frequencies
B:-may be unstable depending on the feedback factor
C-will always be unstable at high frequencies
D:-will oscillate at low frequencies
Correct Answer:- Option-é

Question18::Which of the following is not true for Hermite polynomials?
7]

ധ്യ

00 ழு.

A-Only statement (i)
B-Only statement (i)

C-Only Statement (i