A student has 3 concave mirror a,b,c of focal length 20cm, 15 cm, and 10cm. respectively. for each concave mirror he performed the experiment of image formation foe three values of object find at least one value of object distance 30 cm, 10 cm, 20 cm,

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where is the question?

Answers

2016-03-11T00:58:07+05:30