Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
A real object is moving towards a fixed spherical mirror. The image (1) may move away from the mirror (2) may move towards the mirror if mirror is concave (3) must move away from the mirror (4) may move towards the mirror if mirror is convexA) 1, 2 and 3 are correct
B) 1 and 2 are correct
C) 2 and 4 are correct
D) 1 and 3 are correct
Correct Answer: B
Solution :
If the mirror is concave and a real object is approaching it, the image will move away from the mirror for object distance greater than focal length. If object distance is less than the focal length, virtual image will be formed which moves towards the mirror. If mirror is convex, as object is approaching the mirror, image will move from focus to pole ie, towards the mirror.
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