SCIENTIFIC INSTRUMENTS Starting with Alphabet A
Altimeter: an apparatus used in aircraft for measuring altitudes.
Ammeter: is used for to measure intensity of sound.
Anemometer: is an instrument for measuring the force and velocity of wind.
Audiometer: an instrument to measure intensity of sound.
Audiophone: is an instrument required for improving imperfect sense of hearing.
Dear Sir,
You have mentioned that ammeter is in instrument which is used to measure intensity of sound but actually it is used to measure the intensity of Current only. So you you are requested to rectify it.
Ammeter: is used for to measure intensity of sound