1.(a) Determine the focal length of a spherical mirror which forms three times magnified real image of an object placed 16 cm in front of it.

(b) At what distance should an object be placed from a concave mirror of focal length 18 cm to obtain a real image at 24 cm from it. What will be the magnification produced in this case?

(c) How far should an object be placed from a concave mirror of focal length 20 cm to obtain its image at a distance of 30 cm from the mirror? What will be the height of the image if the object is 6cm tall?

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