Question:medium
A straight metal rod of length 6 cm is placed along the principal axis of a concave mirror of focal length 9 cm such that the end of the rod closer to the mirror is at a distance of 15 cm from the pole of the mirror. The length of the image of the rod is
A straight metal rod of length 6 cm is placed along the principal axis of a concave mirror of focal length 9 cm such that the end of the rod closer to the mirror is at a distance of 15 cm from the pole of the mirror. The length of the image of the rod is
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When an extended object is placed along the principal axis (axial magnification), treat it as two point objects (its ends). Find the image location for each end using the mirror formula. The length of the image is the absolute difference between the two image distances.
Updated On: Mar 30, 2026
- 6 cm
- 12 cm
- 8.75 cm
- 6.75 cm
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The Correct Option is D
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