A spherical mirror forms an image of magnification 3 . The object distance, if focal length of m...

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A spherical mirror forms an image of magnification 3 . The object distance, if focal length of mirror is \( 24 \mathrm{~cm} \), may be
(1) \( 32 \mathrm{~cm}, 24 \mathrm{~cm} \)
(2) \( 32 \mathrm{~cm}, 16 \mathrm{~cm} \)
(3) \( 32 \mathrm{~cm} \) only
(4) \( 16 \mathrm{~cm} \) only
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