The image formed by a concave mirror is ...

The image formed by a concave mirror is twice the size of the object. The focal length of the mirror is 20 cm. The distance of the object from the mirror `is//are`

`10 cm`

`30 cm`

`25 cm`

`15 cm`

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A, B

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DC PANDEY ENGLISH-RAY OPTICS-B. More than one option is correct

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