Question

If an object is placed at 10 cm from a convex mirror of focal length 30 cm ,Find the position of the image.

Answer 1

Answer:

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Explanation:

Then use 1/f = 1/v + 1/u where u = 40 cm.

So 1/-10 + 1/ -40 = 1/v

Then 5/-40 = 1/v and v = -8 cm

So the image is virtual at 8 cm behind the mirror