As the frequency is inversely proportional to the length of string.If length of string is long.Then frequency will be less.
Hence pitch of the instrument will also be lower. Regards
Fill in the blanks :
(a) The time period of a wave is 2 s. Its frequency is ___.
(b) The pitch of a stringed instrument is increases by ___ tension in string.
(c) The pitch of a flute is decreased by ___ length of air column.
(d) Smaller the emebrene, ___ is the pitch.
(e) If a drum is beaten hard, its loudness ___ .
(f) A tuning fork produces sound of ___ frequency.
Fill in the blanks.
(1) Sound waves need …………….. medium for propagation.
(2) Technique of echocardiography is based on reflecting property of …………….. waves.
(3) Sound produced by vibration of simple pendulum is …………….. sound.
(4) For determination of the depth of the sea …………….. technique is used.
(5) Pitch of a sound depends upon ………………. of wave.