in a light experiment with a convex lens a student plotte...
in a light experiment with a convex lens a student plotted a graph as shown above of the reciprocal of object distance (1)/u against the reciprocal of image distance (1)/v . the focal length of the lens is given as
slope of line PQ
Reciprocal of either OP or OQ
Length OP or OQ
area under the graph E ratio OP/OQ
Correct answer is B
The intercept on either of the axes of the graph of 1u against 1v gives the value of 1f. Hence, the reciprocal of this intercecpt gives the value of the focal length.
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