Considering only the magnitudes, which of the following quantities increase as the wavelength is increased?

Step-by-step solution

According to Cauchy's formula, the refractive index of a material is given by = A + B ^2 . As the wavelength increases, the refractive index decreases. From the lens maker's formula, the focal length f is given by 1 f = ( - 1) ( 1 R₁ - 1 R₂ ) . The power of a lens is defined as P = 1 f . Since decreases with an increase in , the term ( - 1) decreases. This implies that the magnitude of 1 f decreases, and consequently, the magnitude of the focal length f increases. Therefore, the magnitude of the focal length of bot