For a concave mirror of focal length \( f \), image is 2 times larger. Then the object distance ...

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For a concave mirror of focal length \( f \), image is 2 times larger. Then the object distance from the mirror can be
(1) \( \frac{f}{2} \)
(2) \( \frac{3 f}{2} \)
(3) \( \frac{f}{4} \)
(4) \( \frac{4 f}{3} \)
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