The device shown in the picture is used for measuring growth in plants. It was invented in the early twentieth century by Sir Jagdish Chandra Bose. Name the device.
A
Electrocardiograph
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B
Crescograph
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C
Chromatogram
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D
Seismograph
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Solution
The correct option is B Crescograph
Sir Jagdish Chandra Bose invented the Crescograph, an electrical instrument that could measure the growth of a plant.
It was capable of magnifying the motion of plant tissues to about 10,000 times of their actual size and, in doing so, found many similarities between plants and other living organisms.