Which Indian scientists invented crescograph, a device for measuring the growth in plants?

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Question:
Which Indian scientists invented crescograph, a device for measuring the growth in plants?

1.Prafulla Chandra Ray

2.Sir Jagadish Chandra Bose

3.Venkatraman Ramakrishnan

4.C. N. R. Rao

Posted Date:-2021-02-21 13:39:16


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