Last Answer : The gramophone was invented by Thomas Alva Edison.
Description : Gramophone was invented by?
Last Answer : Thomas Alva Edison.
Description : Lac is used in making (a) Gramophone records (b) Varnish (c) Sealing wax and lithographic ink (d) All the above
Last Answer : Ans: (d)
Description : Conversion of sound energy into electrical energy is done by – (1) Solar cell (2) Gramophone (3) Microphone (4) Loudspeaker
Last Answer : (3) Microphone Explanation: Conversion of sound energy into electrical energy is done by microphone.
Description : Conversion of sound energy into electrical energy is done by (1) Solar cell (2) Gramophone (3) Microphone (4) Loudspeaker
Last Answer : Microphone
Description : What was the first gramophone record made from
Last Answer : Tinfoil