Answer: The frequency of the given light is [tex]7.05\times 10^{16}s^{-1}[/tex]
Explanation:
To calculate the frequency of light, we use the equation:
[tex]\nu=\frac{c}{\lambda}[/tex]
where,
[tex]\lambda[/tex] = wavelength of the light = [tex]4.257\times 10^{-7}cm=4.257\times 10^{-9}m[/tex] (Conversion factor: 1 m = 100 cm)
c = speed of light = [tex]2.998\times 10^8m/s[/tex]
[tex]\nu[/tex] = frequency of light
Putting values in above equation, we get:
[tex]\nu=\frac{3\times 10^8m/s}{4.257\times 10^{-9}m}\\\\\nu=7.05\times 10^{16}s^{-1}[/tex]
Hence, the frequency of the given light is [tex]7.05\times 10^{16}s^{-1}[/tex]
