Question

Chlorophyll present in green leaves of plants absorbs light at $4.620\times {10}^{14}Hz$. Calculate the wavelength of radiation in nanometer, Which part of the electromagneitc spectrum does it belong to?

Answer 1

$\lambda =\frac{c}{v}=\frac{3.0\times {10}^{8}m/s}{4.620\times {10}^{14}Hz}$
$=0.6494\times {10}^{-5}m=649.4nm$
It belongs to the visible light of the spectrum.