(a). Figure ( a ) (below, left) shows a ray of sunlight that just barely passes

Question

(a). Figure (a) (below, left) shows a ray of sunlight that just barely passes a vertical stick
in a pool of water. Does that ray end in the general region of pointaor pointb?
(b). Does the red or the blue component of the ray end up closer to the stick ?
(c). Figure (b) (below, right) shows a flat object (such as a double-edged razor blade)
floating in shallow water and illuminated vertically. The gravitational pull on the
object and the cohesion of the water cause the water surface to curve as shown.
In which general region (a,b, orc) is the edge of the object

Explanation / Answer

Ans (c) (a). closer tob, (b). red is closer to stick, (c). shadow edge atb.

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