is constructed from 
semiconducting material. The energy gap of this 
is 
. Calculate the wavelength of light emittedand its colour. 
and 
A
and red colour
B
and blue colour
C
and red colour
D
and orange colour
Text Solution
Verified by ExpertsThe correct answer is:
A
We Know that 
Wavelength of red light is 
to 
So, answer is 
.
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