Question

Name a sensitive instrument invented by J. C Bose. When did Bose initiate his research on electro-magnetic waves?​

Answer 1

Crescograph

He was Jagadish Chandra Bose (1858–1937). In 1895, in the town hall of Calcutta (now Kolkata), India, Bose showed how electromagnetic waves can be sent wirelessly through not only air, but also walls and even people's bodies.

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Answer 2

Answer:

Crescograph

He was Jagadish Chandra Bose (1858-1937). In 1895, in the town hall of Calcutta (now Kolkata), India, Bose showed how electromagnetic waves can be sent wirelessly through not only air, but also walls and even people's bodies.

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