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A lens has a focal length of 40 cm. If an object is placed 80 cm from the lens, what is the image distance?

Practice Questions

1 question
Q1
A lens has a focal length of 40 cm. If an object is placed 80 cm from the lens, what is the image distance?
  1. 40 cm
  2. 60 cm
  3. 80 cm
  4. 100 cm

Questions & Step-by-step Solutions

1 item
Q
Q: A lens has a focal length of 40 cm. If an object is placed 80 cm from the lens, what is the image distance?
Solution: Using the lens formula, we find the image distance to be 40 cm.
Steps: 0

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