A convex lens of focal length 10cms is placed at a distance of 12cms from a wall.how for from the lens should an object be placed so as to form its real image on the wall

A convex lens of focal length 10cms is placed at a distance of 12cms f

1.	A convex lens of focal length 10cms is placed at a distance of 12cms from a wall.how for from the lens should an object be placed so as to form its real image on the wall
Answer» YING MIRROR formula:1/v - 1/u = 1/f SIGN CONVENTION is distance from the center of the lens to be positive in one direction and negative in the other. => 1/12 - 1/u = 1/10 => 1/u = 1/12 - 1/10 = - 1/60 => the object to be PLACE on side opposite to that of the wall at a distance of 60 cm. from the lens.Hope this helps you!!!

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A convex lens of focal length 10cms is placed at a distance of 12cms from a wall.how for from the lens should an object be placed so as to form its real image on the wall

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