plot a graph between power of a lens and wavelength of light incident on it
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Refractive index n = A + B/λ2, where λ is the wavelength.
Power of a lens P = (ng - 1)(1/R1 - 1/R2)
Clearly, power of a lens ∝(ng - 1). This implies that the power of a lens decreases with increase of wavelength (P ∝ 1/λ2nearly).
Power of a lens P = (ng - 1)(1/R1 - 1/R2)
Clearly, power of a lens ∝(ng - 1). This implies that the power of a lens decreases with increase of wavelength (P ∝ 1/λ2nearly).
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