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Q: The position of the image produced by a concave mirror when an object is placed at a distance such that light rays from the object are parallel to the principal axis is:
  • A. at a point between the principal focus and the centre of curvature
  • B. at a point between the principal focus and pole
  • C. at the principal focus
  • D. at the position of the object itself
Correct Answer: Option C - The position of the image produced by a concave mirror when an object is place at a distance such that light rays from the object are parallel to the principal axis is at the principal focus.
C. The position of the image produced by a concave mirror when an object is place at a distance such that light rays from the object are parallel to the principal axis is at the principal focus.

Explanations:

The position of the image produced by a concave mirror when an object is place at a distance such that light rays from the object are parallel to the principal axis is at the principal focus.