A 1.0m--tall vertical tube is filled with 20c water. A tuning fork vibrating at 575hz is held just over the top of the tube as the water is slowly drained from the bottom.At what water heights, measured from the bottom of the tube, will there be a standing wave in the tube above the water?

Respuesta :

Answer:

At 0.851 m height there will be a standing wave in the tube above the water.

Explanation:

As per data given it can be observed that the system is based upon open-closed tube.

we know ,

f = m(v/4L)

where

v = velocity of sound in air

L = air column length

h = 1 m - L

f = given frequency

m = 1 (it can be selected as any odd integer like 1,3,5...)

Solution:

L = m*v/4*f

L = 1*343/4*575

L = 0.149 m

so,

h = 1 - 0.149

h = 0.851 m

Answer: The water heights, measured from the bottom of the tube are: 0.851m, 0.553m and 0.254m

Explanation: Please see the attachments below

Ver imagen Abdulazeez10
Ver imagen Abdulazeez10
Ver imagen Abdulazeez10