Question

What is the range of wavelength of audible sound in air ? (When sound velocity in air is 340 m/s). (A) 0.17 m to 170 m (C) 0.017 m to 17 m (B) 0.17 m to 17 m (D) 0.017 m to 1.7 m

GSEB - Class 9 Chapter - 2. Wave Motion and Sound Page 22

Answer 1

option c is correct because human ear can audible 20hz to 20khz frequency.

Answer 2

Option (C) 17mm to 17m corresponds to the wavelength range of audible sound.