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In a concave lens, the focal length is always: (2020)

Practice Questions

1 question
Q1
In a concave lens, the focal length is always: (2020)
  1. Positive
  2. Negative
  3. Zero
  4. Infinite

Questions & Step-by-step Solutions

1 item
Q
Q: In a concave lens, the focal length is always: (2020)
Solution: The focal length of a concave lens is always negative, as it diverges light rays.
Steps: 0

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