Bose’s investigations into electromagnetic waves centered on proving what concept, which was revolutionary at the time?

Answer

The feasibility of sending signals through the air without wires

By studying reflection, refraction, and transmission using his sensitive coherer, Bose effectively proved the feasibility of sending signals through the air without wires, a concept central to radio communication.

Bose’s investigations into electromagnetic waves centered on proving what concept, which was revolutionary at the time?
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