Question

explain any indirect method for small distances

Answer 1

Explanation:

Indirect method for measuring very small distances or length: A simple method for estimating the molecular size of oleic acid is given below. Oleic acid is a soapy liquid with large molecular size of the order of 10–9 m. ... Then, we quickly measure the diameter of the thin film to get its area

Answer 2

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Indirect method for measuring very small distances or length: A simple method for estimating the molecular size of oleic acid is given below. Oleic acid is a soapy liquid with large molecular size of the order of 10–9 m.