Question

plsssssss helllpppppp meeeeeee plsssssssss b) plssss​

Answer 1

1. according to the question , we have velocity, and wavelength
2. to find the frequency we have formula
3. n=v/λ
4. velocity = 340
5. wavelength = 1
6. n = 340/1
7. n = 340

it is audible bcz  frequency is in btwn 20 hz to 20khz