Question

a photon of violet light with wave length 4000 A°​

Answer 1

HEY MATE HERE IS YOUR ANSWER>>>>

$VIOLET- LIGHT = E__{VIOLET} =\frac{HC}{LAMBDA} \\\\\\= \frac{6.626*10^{-34}Js*3*10^{8}ms^{-1}   }{4000*10^{-10} } \\\\\\= 4.97*10^{19}joule$

Answer 2

Explanation:

Refer to the attachment✔

hope it's help you✌