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Question
Figure given below shows a beam of light converging at point P. When a convex lens of focal length 16 cm is introduced in the path of a beam at a place O shown by dotted line such that OP becomes the axis of the lens, the beam converges at a distance x from the lens. The value x will be equal to
Figure given below shows a beam of light converging at point P. When a convex lens of focal length 16 cm is introduced in the path of a beam at a place O shown by dotted line such that OP becomes the axis of the lens, the beam converges at a distance x from the lens. The value x will be equal to
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Solution
The correct option is D 48 cm
By using lens formula
1−161v−1(+12)⇒1v=12−116=4−348⇒v=48 cm
By using lens formula
1−161v−1(+12)⇒1v=12−116=4−348⇒v=48 cm
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