Im having trouble understanding why the \" light\" is coming from the fish and n
ID: 1553109 • Letter: I
Question
Im having trouble understanding why the " light" is coming from the fish and not from the outside/ enviornment.
I keep thinking that since the observer is seeing the fish from a LOW index of refraction (air) to a HIGH index of refraction (water) then the light would refract towards the normal meaning that the fish is being seen closer than it actually is making its position C.
However, I notice that the explanation provided asks us to think of the light as "light from the fish" why is there light from the fish? I thought the light was coming in from the air into the water. Are we always supposed to think of the direction of light as FROM the object TO the observer? I just need to figure out how to have the correct perspective for this problem because i understand the part where if light moves from low n to high n it refracts towards the normal and when it moves from high n to low in it refracts away from the normal.
While standing on a rock next to a lake, a hunter sees a fish at position A. Where should the hunter throw the spear in order to catch the fish? The ACTUAL position of the fish is position B since the light from the fish travels from a high index material (water) into a low index material (air), and bends away from the normal.Explanation / Answer
We see objects when light comes from them. Now there are two ways for this to happen 1. Object is luminous so that it itself is a light source. 2. Light from surrounding luminous sources hits object and get scattered. Now this light when enters human eyes he see the object. At the time of entering eyes direction from which rays enter we see object straight in that direction.
So light is actually coming from surrounding but what we see is due to light that scattered from fish.
I hope you got your answer.