Question

In which of the following cases the distance between object and its image formed will be zero?
(A) When object is placed at centre of curvature of a convex mirror.
(B) When object is placed at centre of curvature of a concave mirror.
(C) When object is placed at focal point of a concave mirror.
(D) When object is placed in between centre of curvature and focal point of a concave mirror.​

Answer 1

Answer:

b)

Explanation:

Answer 2

Answer:

The correct option is b) When object is placed at centre of curvature of a concave mirror.

Explanation:

• We know that, in the case of a concave mirror, the real and inverted image is created when the object is positioned at the center of the curvature.
• As a result of the image being formed at the same location as the object, i.e., at the center of curvature for the concave mirror and hence the distance between the image and the object is zero.
• The preceding descriptions suggest that there is a link between object distance and object size, as well as image distance and image size.
• Starting with a large value, the image distance increases as the object distance decreases (the item is brought closer to the mirror), but the image height increases.
• At the centre of curvature, the object distance equals the image distance, and the object height equals the image height.

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