Physics
The width of depletion layer of a P-N junction

Is increased under reverse bias
Decreases with light doping
Increases with heavy doping
Is independent of applied voltage

ANSWER DOWNLOAD EXAMIANS APP

Physics
Purpose of an optical filter is to

Reflect lights of different colours
Transmit or absorb light of different colours
Dispense light into component colours
Refract light of different colours

ANSWER DOWNLOAD EXAMIANS APP