Ray Optics and Optical Instruments: NEET 2021

Medium· Refraction through a Prism (Derivation of Refractive Index of Material of Prism)· +4 / −1

Find the value of the angle of emergence from the prism. Refractive index of the glass is

\sqrt{3}

. Figure: a right-angled prism ABC with the right angle at B (vertical face AB on the left, horizontal base BC) and an angle of

60^\circ

at C, so the hypotenuse AC makes

60^\circ

with the base. A ray of light falls on the hypotenuse AC normally (perpendicular to AC), and travels inside the prism towards the vertical face AB. Question diagram

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