Question

Determine the frequency of light with a wavelength of 4.257x10^-7cm

Answer 1

Answer:

frequency of light is $70.47\times 10^{15} \ per\ second$

Explanation:

Given

wavelength of light = $4.257\times 10^{-7}\ cm = 4.257\times 10^{-7} \times 10^{-2} \ m= 4.257\times 10^{-9}\ m$

Speed of Light = $3\times 10^8 \ m/s$

∴ Frequency of Light = $\frac{\textrm{Speed of Light}}{\textrm{wavelength}}=\frac{3\times 10^8}{4.257\times 10^{-9}}= 70.47\times 10^{15} \ per\ second$