QuizardLight Emitting Diode (LED) work on principle of
Who discovered the concept of blackbody radiation
An SCR behaves as a ___ switch
A _____mirror always forms an erect image of the object
Transistor is a ______device
The device in which negative feedback is used is
The purpose of choke in tube light is ___
Sound travels at the fastest speed in____
Select the Scalar Quantity _____
Nuclear sizes are expressed in a unit named ______
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