A boy floating on a pond watches a fish swim away from him as in Figure P22.44. If the fish is 2.25 m beneath the surface, for what maximum distance d will he be able to see the fish?

Problem 6:  Electric room heaters use a concave mirror to reflect infrared (IR) radiation from hot coils. Note that IR follows the same law of reflection as visible light.  Find the magnification of the heater element, given that the mirror has a radius of curvature of 49 cm and produces an image of the coils 3.2 m away from the mirror.

Building contractors often install double-glazed windows to prevent thermal energy (heat) from entering or exiting a building. In addition to being effective insulators, such windows present interesting optical effects. glass In the figure, a double-glazed window consists of two identical panes of glass (ng = 1.46), each yg = 12.0 mm air thick, separated by an air gap of y, = 9.60 mm. If light incident on the glass makes an angle of o = 40.00° with respect to the glass, find the shift in path Ax as the light glass enters the room. Use na = 1.00 for the index of refraction of air. Ax = mm

A light ray traveling in air is incident on one face of a right-angle prism with index of refraction n = 1.49, as shown in Figure P22.54, and the ray follows the path shown in the figure. Assuming that θ = 58.0° and the base of the prism is mirrored, determine the angle made by the outgoing ray with the normal to the right face of the prism.?degrees

A light ray travels through three parallel slabs having different indices of refraction as in Figure CQ22.3. The rays shown are only the refracted rays. Rank the materials according to the size of their indices of refraction, from largest to smallest. Figure CQ22.3 ne 726 "a

1. A ray of light is passing through air (n=1).  It strikes a level surface of water (n=1.33) at an angle of 40° with respect to the surface of the water.  The water is 10 cm thick.  The light ray refracts and travels through the water.  There is a level layer of clear polystyrene (n = 1.6) that the water is resting upon. The light ray hits the polystyrene level and travels through it, finally reaching a sheet of glass (n=1.45). Given that the speed of light in a vacuum is 3 x 108 m/s, calculate the speed of light in the water and the time it takes for the light to traverse the water layer.     (actual question i need answered) *Using the arrangement in Problem 1, calculate the critical angle for total internal reflection at the polystyrene-glass interface

Building contractors often install double-glazed windows to prevent thermal energy (heat) from entering or exiting a building. In addition to being effective insulators, such windows present interesting optical effects. 62.0 mm In the figure, a double-glazed window consists of two identical of glass (ng panes 1.54), each yg thick, separated by an air gap of ya = 49.6 mm. Use na = 1.00 for the index of refraction of air. = If light incident on the glass makes an angle of = 40.00° with respect to the glass, find the shift in path Ax as the light enters the room. Ax = 42.36 Incorrect glass air glass mm

A camper is trying to start a fire by focusing sunlight onto a piece of paper. The diameter of the sun is 1.39 × 10⁹ m, and its mean distance from the earth is 1.50 × 1011 m. The camper is using a converging lens whose focal length is 10.3 cm. (a) What is the area of the sun's image on the paper? (b) If 0.752 W of sunlight pass through the lens, what is the intensity of the sunlight at the paper? (a) Number i (b) Number i Units Units

A light ray enters a rectangular block of plastic at an angle Ɵ1 = 45.0˚ and emerges at an angle Ɵ2 = 76.0˚ , as shown in figure P22.57  (a)Determine the index of refraction of the plastic. (b) If the light ray enters the plastic at a point L=50.0cm from the bottom edge, how long does it take the light ray to travel through the plastic?