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A lens forms a real image that is twice the size of the object. If the object distance is 10 cm, what is the image distance? (2021)

Practice Questions

1 question
Q1
A lens forms a real image that is twice the size of the object. If the object distance is 10 cm, what is the image distance? (2021)
  1. 10 cm
  2. 15 cm
  3. 20 cm
  4. 25 cm

Questions & Step-by-step Solutions

1 item
Q
Q: A lens forms a real image that is twice the size of the object. If the object distance is 10 cm, what is the image distance? (2021)
Solution: Using the magnification formula m = -v/u, where m = 2 and u = -10 cm, we find v = -2 * (-10) = 20 cm.
Steps: 0

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