A flashlight is held at the edge of a swimming pool at a height h = 2.4 m such that its beam makes an angle of theta = 55 degrees with respect to the water's surface. The pool is d = 1.7 m deep and the index of refraction for air and water are n_{f} = 1 and n_{2} = 1.33 respectively. What is the horizontal distance , D , from the edge of the pool to the point in the bottom of the pool where the light strikes

A flashlight is held at the edge of a swimming pool at a height h = 2.4 m such that its beam makes an angle of theta = 55 degrees with respect to the water's surface. The pool is d = 1.7 m deep and the index of refraction for air and water are n_{f} = 1 and n_{2} = 1.33 respectively. What is the horizontal distance , D , from the edge of the pool to the point in the bottom of the pool where the light strikes

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A light beam is incident from air at 0₂ = 45° on the top face AB of a prism. The other two faces of the prism (AC and BC) are partially submerged into a liquid with refractive index n₁ = √3/2. The index of refraction of the prism is np = √3. The beam of light emerges from the prism parallel to the prism- liquid interface BC. Determine the prism apex angle at point B. 0₂ 8 = 15.0° 0 = 20.9° 9=30.0° = 45.0° C A np = na = 1 √3 0 n₁ = √3/2
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After a long day of driving you take a late-night swim in a motel swimming pool. When you go to your room, you realize that you have lost your room key in the pool. You borrow a powerful flashlight and walk around the pool, shining the light into it. The light shines on the key, which is lying on the bottom of the pool, when the flashlight is held 1.2 m above the water surface and is directed at the surface a horizontal distance of 1.5 m from the edge. If the water here is 4.0 m deep, how far is the key from the edge of the pool? (Given refractive index of water is = 1.33) 1.5 m 1.2 m 4.0 m
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