Question

(a) Sound cannot travel in __________.
(b) The speed of sound in air is_________ m/s
(c) Closer the source, ________ is the sound.
(d) To a partially deaf listener, a louder sound will appear
to be ________.
(e) A ________ vibrating body area sends forth a greater
amount of energy.
(f) The safe limit of level of sound for hearing is from
____________ dB.
(g) Pitch depends on the ________ .
(h) ______ is considered to be the zero level of sound in
decibel.
(i) If amplitude of wave is tripled, the loudness becomes
______ times.
(j) The voice of a female is ________ than that of a male.

Answer 1

Answer:

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Explanation:

JFK the day of the account to send the day god bless you and anaerobic respiration itidyxudodv you mausi ❤️ you ever been happy you mausi you mam this you mausi ki tarah ulta palta kotha bolte h kya hai