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Physics Light - Reflection and Refraction CBSE Board 2026 Medium

(a) Write the expression for the magnification produced by a lens in terms of object distance and image dista…

  1. (a)Write the expression for the magnification produced by a lens in terms of object distance and image distance.
  2. (b)A 4 cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 20 cm. Calculate the size of the image formed, if the distance of the object from the lens is 10 cm.

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