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Question

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.
1003043_582f7c087c594ce099df460b939838b4.png

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.

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