Optics - How deep is the goldfish? A tank whose bottom is a mirror is filled with water to a depth of 19.1cm . A small fish floats motionless 6.40 cm under the surface of the water. (Express in cm. Use 1.33 for the index of refraction of water) Part A: What is the apparent depth of the fish when viewed at normal incidence to the water?  Part B: What is the apparent depth of the reflection of the fish in the bottom of the tank when viewed at normal incidence?

how would you solve this? For total internal reflection to occur, the angle of incidence must be greater than the critical angle, and the   a wavelength in the first medium must be greater than the wavelength in the second medium. b speed in the first medium must be greater than the speed in the second medium. c index of refraction of the first medium must be less than the index of refraction of the second medium. d index of refraction of the first medium must be greater than the index of refraction of the second medium.

Homework 12 Problem 6:   An object is located in air, 35 cm from the vertex of the concave surface of a block of glass (as viewed from the air side of the surface). The surface’s radius of curvature is 15 cm. Use these indices of refraction: nair = 1.0 and nglass = 1.5. Part (a)  Find the refraction image distance, in centimeters. Include its sign. s' = ______ Part (b)  What is the magnification of the image? Include the magnification’s sign to indicate the orientation of the image with respect to the object. m = ______

A laser beam is pointed so that it passes through side A of the triangular glass (n = 1.5) prism shown below at an angle of incidence of 0o. The ray then strikes the far side of the prism (the hypotenuse). This experiment is conducted first when the prism is surrounded by air (n = 1) and then when the prism is surrounded by water (n = 1.33).    Instructions Draw a sketch of the physical situation with all given physical quantities clearly labeled. Your sketch should include both when the prism is in air and when it is in water. If you are unsure of the path the light will follow after hitting the far side of the prism, do not include that in your sketch. Draw a ray diagram which represents what happens to the light when it is incident on the hypotenuse of the prism (a) when the prism is in air and (b) when the prism is in water. Include both reflected and refracted rays in your ray diagram. Determine whether the light from the laser will pass through the hypotenuse of the prism when…