A virtual, erect and magnified image of an object is to be produced with a concave mirror of focal length 14 Cm. Which of the following object distance should be chosen for this purpose ?; (i) 10 Cm (ii) 15 Cm (iii) 20 Cm; Give reasons for your choice.
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I think it is 20cm because the image is formed with a concave mirror of focal length 14cm
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