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An object 1 cm long lies along the principal axis of a convex lens of focal length 15 cm , the centre of the object being at a distance of 20 cm from the lens. Therefore, the size of the image is

Options

  1. A0.3 cm
  2. B3 cm.
  3. C9 cm.
  4. D12 cm.

Correct answer

C. 9 cm.

Step-by-step solution

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