The distance of an object from a spherical mirror is equal to the focal length of the mirror. Then the image:
The distance of an object from a spherical mirror is equal to the focal length of the mirror. Then the image:
A. must be at infinity
B. may be at infinity
C. may be at the focus
D. none
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Correct Answer - B
Image formation by concave mirror when object is real & placed at focus f. forms image at infinity but not in other cases.
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