A planar LED is fabricated from GaAs is having a optical power emitted – McqOptions

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1.	A planar LED is fabricated from GaAs is having a optical power emitted is 0.018% of optical power generated internally which is 0.018% of optical power generated internally which is 0.6 P. Determine external power efficiency.$
A.	0.18%
B.	0.32%
C.	0.65%
D.	0.9%
Answer» E.

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