Question

If the energy of a photon is given as : = 3.03 × 10⁻¹⁹ J then, the
wavelength (????) of the photon is :
(a) 6.56 nm (b) 65.6 nm
(c) 656 nm (d) 0.656 nm

Answer 1

Answer:

E = hc/L (L = wavelength)

L = hc/E. (h*c = 2*10^(-25)

= 2*10^(-25) / 3.03*10^(-19).

= 0.660 * 10^(-6)

= 660 * 10^(-9)

= 660nm

Option c is correct