Find the energy of each of the photon which have wavelength of 0.50 A*

Explanation

E = hv (According to Planck.s equntum equation)
`E = ( hc)/(lamda ) = ( because c = v lamda so, v = (c)/( lamda ))`
`E = ( 6.6 xx 10 ^(-34) Js xx 3 xx 10 ^(8) ms ^(-1))/( 0. 50 xx 10 ^(-10) m ) = 3. 98 xx 10 ^(-15) J`
`E = 3 98 xx 10 ^(-15) J`