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The focal length of a concave mirror is 50cm. Where an object be placed so that its image is two times and invertedA. 75 cmB. 60 cmC. 125 cmD. 50 cm |
Answer» Correct Answer - A (a) In case of concave mirror, m=-2 Also, `m=(f)/(f-u)` `rArr -2=(-50)/(-50-u)` `therefore` Distance of the object from the mirror u = -75 cm |
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