You are standing on a fish pond wishing to catch a fish. How would you aim your fish gun in order to catch a fish which your eyes could see 20 cm below the surface of water ? will u aim higher , lower or exactly on the location of the fish as seen by your eyes ?

find out what determines how large the bending of the light ray is when it through a different medium ?
i have no idea how to do this because our teacher didn't teach this . please give me the idea or teach e how please please thank u very much

To catch a fish that you can see 20 cm below the surface of the water, you would need to aim your fish gun slightly lower than the location of the fish as seen by your eyes. This is because of the phenomenon of refraction. When light travels from one medium (such as air) to another medium (such as water), it changes direction due to a change in speed. The amount of bending, or refraction, depends on the angle at which the light approaches the interface between the two mediums and the refractive indices of the two mediums.

In this case, when light travels from air into water, it slows down and bends towards the normal (an imaginary line perpendicular to the water's surface). As a result, the fish appears to be higher than it actually is when viewed from above the water's surface. To compensate for this apparent shift, you would need to aim slightly lower than the fish's actual location in order to capture it.

Regarding determining the bending of light when it passes through a different medium, it can be determined by Snell's law. Snell's law states that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocities of light in the two mediums. This law mathematically describes the relationship between the angle of incidence and the angle of refraction for light passing through a boundary between two different mediums.

Therefore, to determine the bending of a light ray when it passes through a different medium, you would need to know the angle of incidence, the refractive indices of the two mediums, and apply Snell's law.