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HW11-problems-1

# HW11-problems-1 - aliu(fa5484 HW11 mackie(20225 This...

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aliu (fa5484) – HW11 – mackie – (20225) 1 This print-out should have 13 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0points A ray of light is incident at an angle of 36 . 4 on the surface of a piece of crown glass whose index of refraction is 1 . 52 . What is the angle of refraction? Answer in units of . 002(part1of3)10.0points Batman and Robin are attempting to escape that dastardly villain, the Joker, by hiding in a large pool of water (refractive index n water = 1 . 333). The Joker stands gloating at the edge of the pool. (His makeup is water- soluble.) He holds a powerful laser weapon y 1 = 1 . 19 m above the surface of the water and fires at an angle of θ 1 = 28 . 3 to the hor- izontal. He hits the Boy Wonder squarely on the letter “R”, which is located y 2 = 3 . 21 m below the surface of the water. θ x y y 1 1 2 R J Batplastic surface Mirrored Surface water B How far (horizontal distance) is Robin from the edge of the pool? (Fear not, Batfans. The “R” is made of laser-reflective material.) Answer in units of m.

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