Conductivity of a photodiode starts changing only if the wavelength of incident light is less than 660 nm. The band gap of photodiode is found to be \(\rm \left(\frac{X}{8}\right)eV\) The value of X is :
(Given, h = 6.6 × 10–34 Js, e = 1.6 × 10–19C)
1
15
2
11
3
13
4
21
5
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