Question

If you were on shore or in a boat trying to spear a fish, you should...

If you were on shore or in a boat trying to spear a fish, you should aim

a.

above the apparent position of the fish.
b.

below the apparent position of the fish.
c.

right at the apparent position of the fish.
Science   Physics   
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Homework Answers

Answer #1

OPTION (b) IS correct .

Explanation :

We see objects when light reflects from it and reaches our eye.

In this case, the light that reflects from the body of the fish travels to our eye so that we can see it. But the light rays have to travel through two media to reach our eye - first through water and then through air. When light travels from one medium to another, it undergoes a change in direction. This is known as refraction. Here, water is an optically denser medium compared to air. So, the light deviates away from the normal. As shown in the figure, the light will be actually coming from point A whereas we see the fish in point A'

The position where the fish actually is is lower than where we see it. So, we should throw the spear below the observed fish.

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