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Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 26 - Geometrical Optics > A lens forms a real image of an object. The distance from the object to the lens is x cm and that from the lens to the image is y cm. The graph shows the variation of y with x. It can be deduced that the lens is

A lens forms a real image of an object. The distance from the object to the lens is x cm and that from the lens to the image is y cm. The graph shows the variation of y with x. It can be deduced that the lens is

A beam of light propagates through a medium 1 and falls onto another medium 2 at an angle α 1 as shown in Fig. After that it propagates in medium 2 at an angle α2 as shown. The light's wavelength in medium 1 is λ1. What is the wavelength of light in medium 2?