1- Find the speed of sound in laboratory (C) for each frequency, using the following formula: C=4FLc (m/s) 2- Find the average speed of sound using the following formula Slope AL/A(1/F) = >C= 4xslope 3- Find the speed of sound at 0 CO by using the following formula, 273+T 273 Co=C T= room temperature. Knowing that the actual value for CO, is CO=331 (m/s).
1- Find the speed of sound in laboratory (C) for each frequency, using the following formula: C=4FLc (m/s) 2- Find the average speed of sound using the following formula Slope AL/A(1/F) = >C= 4xslope 3- Find the speed of sound at 0 CO by using the following formula, 273+T 273 Co=C T= room temperature. Knowing that the actual value for CO, is CO=331 (m/s).
Related questions
Question
1-Find the speed of sound,
2-Draw a graph
Transcribed Image Text:Calculations:
1- Find the speed of sound in
laboratory (C) for each frequency, using the following formula:
C = 4FLc (m/s)
2- Find the average speed of sound using the following formula
Slope AL/A(1/F)
3- Find the speed of sound at 0 CO by using the following formula,
273+T
273
Co=C
T= room temperature.
Knowing that the actual value for CO, is CO-331 (m/s).
Figure (1)
Tuning
lork
dir
>C= 4xslope
water
1F
Slope AL/ALL/F)
Figure (2)
Transcribed Image Text:Experiment Name: Speed of sound
Purpose of experiment: measurement the speed of sound from the sound waves
set up in the closed resonance tube.
Apparatus:
1- Closed resonance tube of variable length (see fig (1) below).
2- Meter scale.
3- Tuning forks of different frequencies.
4- Rubber pad.
5- Thermometer.
Method
1- Select the fork of highest frequency (512 Hz).
2- Strike it smartly on a rubber pad hold it over the mouth of the tube.
3- Adjust the shortest length of the resonance column until resonance occurs.
4- Measure the length of the air in the tube, L (see figure below).
5- Repeat the measurement two or three times and take the mean (LI).
6- Obtain different values of L using other forks (412 Hz......etc).
7- Measure the diameter of the tube to obtain its radius (r).
As shown in figure (1):
8- Record the room temperature.
9- Write your results in the table below
F (Hz)
L (cm)
1/F
(Le)=L+0,6 r
Where
L: Shortest resonance length of air column
Lc: Corrected length
C: Speed of sound
F: Frequency
F (Hz)
180
420
384
320
288
C-4FL (m\sec)
Live
0-17
0.19
0.22
025
29
2-X10-9
23X10-9
26 x 10-7
31 A 10-7
34 x 154
10- plot the graph from the above obtained results for (1/F) on x-axis against (L)
on y-axis and find its slope, as shown in figure (2)
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 4 steps with 4 images
