Question

A swimmer S inside water is vertically above a fixed point P. A rectangular glass slab B is placed between S and P. As been by S, the position of P will appear to change, if

Answer 1

Explanation:

For normal viewing, apparent change in the position of P due to the slab does not depend on the position of the slab. When S moves horizontally, the condition of normal viewing does not apply, and the apparent position of P will change with the angle of viewing.

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