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?

Question

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?

 

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