A parallel beam of light rays are incident on the flat surface of half cylinder made of glass as shown in the figure. The refractive index of the material of glass is $2$ . The angle of incidence is $4 5^{0}$ . ' R ' and ' L ' are the radius and length of cylinder respectively. Choose the correct option(s)

Question

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Use the concepts of refraction and TIR

Physics - Geometrical Optics Question with Solution | TestHub

Options:(select one or more)

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JEE Main + Advanced (1 year 12th class)

JEE Advanced (2028)