An object is placed at the following distances from a concave mirror of focal length 16 cm, turn by turn:

(a) 36 cm


(b) 32 cm


(c) 21 cm


(d) 9 cm


Which position of the object will produce:


(i) a magnified real image?


(ii) a magnified virtual image?


(iii) a diminished real image?


(iv) an image of same size as the object?

(i) A magnified real image - 21 cm - When the object is placed between focus and centre of curvature.

(ii) A magnified virtual image - 9 cm -When the object is placed within its focus.


(iii) A diminished real image - 36 cm -When the object is placed beyond the centre of curvature.


(iv) An image of same size as the object - 32 cm -When the object is at the centre of curvature.


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