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Q: An object is placed in front of a concave mirror of focal length 20 cm, at a distance of 30 cm. Its image is formed at a distance of _____and is ____.
  • A. 60 cm, real
  • B. 12 cm, real
  • C. 12 cm, virtual
  • D. 60 cm, virtual
Correct Answer: Option A - An object is placed in front of a concave mirror of focal length 20 cm. at a distance of 30 cm. Its image is formed at a distance of 60cm, and is real.
A. An object is placed in front of a concave mirror of focal length 20 cm. at a distance of 30 cm. Its image is formed at a distance of 60cm, and is real.

Explanations:

An object is placed in front of a concave mirror of focal length 20 cm. at a distance of 30 cm. Its image is formed at a distance of 60cm, and is real.