General Science Physics Wave

______ ରୁ ଅଧିକ ଶବ୍ଦ ମାନବ କାନ ପାଇଁ ଶାରୀରିକ ଭାବରେ ଯନ୍ତ୍ରଣାଦାୟକ ହୁଏ |

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4

10 dB

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