A student measures the focal length of a concave mirror by focussing a distant building at three different time of the day on a clear sky day. The timings are:T1:8 A.M.T2:2.00P.M.T3 :5.30 P.M.
The student will most likely to get accurate reading at:
repeated answers will not be marked as brilianliest....
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Answer:
it is only because of efficiency
Explanation:
1/3 222 that being lost
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