The focal length of a convex lens is 25 cm.At what distance from the optical centre of the lens an object be placed to obtain a virtual image of twice the size?
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focal length =25 cm so, distance between from optical centre to focus is 25 cm and
2f = 50cm
if we place image between optical centre and focus
between 25cm to 0cm
image formed is virtual magnified and larger in size and formed beyond the 25 cm
of the lens on same side of lens
2f = 50cm
if we place image between optical centre and focus
between 25cm to 0cm
image formed is virtual magnified and larger in size and formed beyond the 25 cm
of the lens on same side of lens
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