the frequency of violet light is 7.5*10^(14) what is its wavelength

the frequency of violet light is 7.5*10^(14) what is its wavelength

The speed of light, c, is equal to the product of the wavelength (lamda), and the frequency, ν.

Then c = λ * v

Therefore

λ = c/ν

λ = 3 x 10⁸ m/sec/(7.5 x 10¹⁴ Hz)

λ = 30 x 10⁷ m/sec/(7.5 x 10¹⁴ Hz)

λ = 4 X 10^-7m