As compared to LED, LASER has 1. higher emission efficiency2. no tunin – McqOptions

MCQOPTIONS

1.	As compared to LED, LASER has 1. higher emission efficiency2. no tuning arrangement3. narrow spectral width4. provision for confinement Of these statements
A.	1, 2, 3 are correct
B.	1, 2, 4 are correct
C.	1 and 3 are correct
D.	1, 3, 4 are correct
Answer» E.

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