A candle is placed infront of a convex mirror. Part A Consider the following dia

Question

A candle is placed infront of a convex mirror. Part A Consider the following diagrams, where C andF represent the center of curvature and the focal point of theconvex mirror, respectively. In these diagrams, the image formed bythe mirror is obtained using the ray tracing technique. Whichdiagram(s) are correct? (Part Afigure) Type A if you think thatonly diagram A is correct, type AB if you think thatonly diagrams A and B are correct, and so on. Part A Consider the following diagrams, where C andF represent the center of curvature and the focal point of theconvex mirror, respectively. In these diagrams, the image formed bythe mirror is obtained using the ray tracing technique. Whichdiagram(s) are correct? (Part Afigure) Type A if you think thatonly diagram A is correct, type AB if you think thatonly diagrams A and B are correct, and so on. Part B Express your answer incentimeters. do= Part C Part C Consider the following diagrams, where now Cand F represent, respectively, the center of curvature and thefocal point of the concave mirror. Again, the image formed by themirror is found by ray tracing. Choose the correct diagram(s). (Part C figure) Type A if you think thatonly diagram A is correct, type AB if you think thatonly diagrams A and B are correct, and so on. Part D Express your answer incentimeters.

Explanation / Answer

Part - A :

         Type - A iscorrect.

Part - B :

        Focal length is: f = R / 2 = 50 / 2 = 25 cm

We have : 1 / f = 1/u + 1/ v

                1 / u = 1 / f - 1 / v

                         = 1 / 25 - 1 / 20

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