An electric bell operated within an evacuated bell jar en...
An electric bell operated within an evacuated bell jar enables us to infer correctly that
light waves require a medium for transmission
sound waves do not require a medium for transmission
light waves do not require a medium for transmission but sound waves do
light waves travel much faster than sound waves
light waves and sound waves travel at the same speed
Correct answer is C
No explanation has been provided for this answer.
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