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Find the wavelength of light that may ex...

Find the wavelength of light that may excite an electron in the valence band of diamond to the conduction band. The energy gap is 5.50 eV

A

226 nm

B

312 nm

C

432 nm

D

550 nm

Text Solution

Verified by Experts

The correct Answer is:
A
Energy gap, `E_(g)=(hc)/(lambda), lambda=(hc)/(E_(g))`
Here, energy gap `=5.50eV`
Take hc = 1240 eV nm
`therefore lambda=(1240eVnm)/(5.5eV)=226nm`
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