The mouth piece of a telephone handset converts
...The mouth piece of a telephone handset converts
electrical energy to sound energy
sound energy to electrical energy
sound energy to radiowave
radiowave to sound energy
Correct answer is B
No explanation has been provided for this answer.
The diagram shows lens arrangement in ...
Which statement is NOT correct about molecules? ...
A cell of e.m.f 2V and internal resistance 1Ω supplies a current of 0.5 amps to a resistanc...
When a ray of light is incident normally on an air- glass interface, its angle of refraction is ...