Draw a plot showing the variation of power of a lens with the wavelength of incident light.

Explanation

Power of a lens is given as :
`P=(1)/(f)=(mu-1)((1)/(R_(1))-(1)/(R_(2)))`
`"Here "mu=A+(B)/(lambda^(2))+(C )/(lambda^(4))+…`
Hence, increase in wavelength of ligh raduces refractive index and the power of lens decreases.