Question

A student is to find the focal length of
(i) a concave mirror
(ii) a convex lens
by focusing the image of a distant object on a screen. He will observe that the screen is on the same side as that of the object in
(a) both the cases
(b) case (i) but not in case (ii)
(c) case (ii) but not in case (i)
(d) neither case (i) nor in case (ii)​

Answer 1

Answer:

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Explanation:

For a distant object, a concave mirror produces a real image at the focus. So, for concave mirror the object and image lies on the same side.

While a convex lens produces a real image of a distant object at the focus and is on the other side of the lens. That is here the object and image are in opposite sides of the lens.

So, option B is correct.