When a person speaks in front of a microphone, the sound energy converts into:
When a person speaks in front of a microphone, the sound energy changes into :
A microphone converts :
(a) electric energy into sound energy in ordinary telephone
(b) microwave energy into sound energy in a mobile phone
(c) sound energy into mechanical energy in a stereo system
(d) sound energy into electrical energy in public address system
When we sing in front of a mic or microphone, chemical energy gets converted to electrical energy.
Name the energy transfer which occurs when :
(a) an electric bell rings
(b) someone speaks into a microphone
(c) there is a picture on a television screen
(d) a torch is on