1.

A concave lens forms an erect image of 13rd size of the object which is placed at a distance 30 cm in front of the lens. Find : (a) the position of image, and (b) the focal length of the lens.

Answer»

A concave lens forms an erect image of 13rd size of the object which is placed at a distance 30 cm in front of the lens. Find :

(a) the position of image, and

(b) the focal length of the lens.



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