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							an object is placed at a certain distance from a screen.
  a convex lens of focal length 40cm is placed between the screen and the object.
  a real image is formed on the screen for the two positions  of the lens,which differ by a distance  of 1017cm.
  find the distance of the object from the screen

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shilpa123 Senior Member Joined: 16May2007 Online Status: Offline Posts: 232	Topic: Optics Posted: 19Aug2007 at 10:24pm
	an object is placed at a certain distance from a screen. a convex lens of focal length 40cm is placed between the screen and the object. a real image is formed on the screen for the two positions of the lens,which differ by a distance of 1017cm. find the distance of the object from the screen Post Resume: Click here to Upload your Resume & Apply for Jobs

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