an object is placed perpendicular to the principal axis of a convex lens of focal length 10 cm the distance of the object from the optical centre of the lens is 15 CM calculate the position of the image formed mention the nature of the image formed
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1/v=1/f+1/u
1/v=1/30
v=30
nature real and inverted
1/v=1/30
v=30
nature real and inverted
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0
The image of an object formed by a convex lens is of the same size as the object .if the image informedat distance of 50cm from the lens,at what distance from the lens is the object placed ?find the focal length and power of the lens used.
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