CBSE Class 10 Answered
PLS EXPLAIN
Asked by gpnkumar0 | 14 Mar, 2018, 09:17: PM
Expert Answer
Let lens-to-object distance be u and lens-to-image distance is v.
magnification m = v/u = 3, i.e. v = 3×u
distance from candle to wall is 6 m, i.e. u+v = 6 m
solving for u and v, we get u = 1.5m and v=4.5m
we need converging lens or convex lens.
focal length is obtained from the equation given below
Answered by Thiyagarajan K | 14 Mar, 2018, 11:28: PM
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