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An object placed 60 cm from …

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An object placed 60 cm from the lens gives a virtual image at a distance of 20 cm in front of the lens what is the focal length of the lens is convering or divering
  • 1 answers

Sia ? 4 years, 7 months ago

It will be found to be equal to 6 cm. Thus, object is placed at a distance of 6 cm × 5 = 30 cm from the lens. An object 5.0 cm in length is placed at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm.

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