Sound waves travel in air at a speed of 340 ms-1 at 20 degrees. Calculate the wavelength of sound waves in air which had a frequency of
A) 3400 Hz
B) 18 000 Hz
I just don’t get it?
Thanks
Can anyone help me with a frequency question. I’m stuck?
2018-01-23 11:26 am
回答 (2)
2018-01-23 11:40 am
A)
Wavelength
= Speed / Frequency
= (340 m s⁻¹) / (3400 Hz)
= (340 m s⁻¹) / (3400 s⁻¹)
= 0.10 m (to 2 sig. fig.)
A)
Wavelength
= Speed / Frequency
= (340 m s⁻¹) / (18000 Hz)
= (340 m s⁻¹) / (18000 s⁻¹)
= 0.019 m (to 2 sig. fig.)
Wavelength
= Speed / Frequency
= (340 m s⁻¹) / (3400 Hz)
= (340 m s⁻¹) / (3400 s⁻¹)
= 0.10 m (to 2 sig. fig.)
A)
Wavelength
= Speed / Frequency
= (340 m s⁻¹) / (18000 Hz)
= (340 m s⁻¹) / (18000 s⁻¹)
= 0.019 m (to 2 sig. fig.)
2018-01-23 1:34 pm
Does the higher frequency make radio waves travel faster at 20F? I'm thinking they all move at 340 meters per second for the sake of the "science" presented. I thought they moved at the speed of light?
收錄日期: 2021-04-24 00:56:19
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