how far should an object be placed from the pole of a concave mirror of focal length 20cm to form a real image whose size is 1/5th of the size of the object.

Asked by Bholanath Beura | 13th Nov, 2012, 02:45: PM

Expert Answer:

m=-1/5=-v/u     u=? v=u/5 , f=-20 cm

Answered by  | 14th Nov, 2012, 10:32: AM

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