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Refraction

Q1- A ray of sunlight hits the ice on a frozen lake at 600 angle of incident. (a) At what angle does the refracted ray penetrate the water beneath the ice? (b) What is the speed of light for the refracted beam in the water? Refractive index of water = 1.333 and that of ice = 1.039.

Q2- A converging lens has a focal length 60 cm. An object 25 cm tall is located 180.0 cm in front of the lens. (a) How far from the lens does the image appear? (b) Find the height of the image. (c) Is the image real or virtual?

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