If an object is placed away (at infinity) from the pole of a convex mirror whose focal length is 10 cm, the image is located at .
A
+ 10 cm
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B
- 10 cm
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C
at infinity
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Solution
The correct option is A + 10 cm For an object at infinity, a convex mirror produces the image at the focus. The focal length of the convex mirror is always positive, i.e., +10 cm.