String Vibrator
Teachers’ Notes–Standing Waves In Strings
24
®
Analysis Method 2
f = (60.0 ± 0.1) Hz
L = (0.987 ± 0.001 m)
This result differs from the direct measurement of linear density by 0.01 × 10
-4
kg/m. It is within
the estimated uncertainty.
F
vs.
n
F
vs. 1/
n
2
Slope = 3.74 ± 0.01 N
4
µ
f
2
L
2
3.74
0.01 N
±
=
µ
3.74
0.01 N
±
(
)
4f
2
L
2
--------------------------------------
2.67
0.01
±
(
)
10
4
–
×
kg/m
=
=
% Deviation
2.67
10
4
–
×
kg/m 2.66
10
4
–
×
kg/m
–
2.66
10
4
–
×
kg/m
---------------------------------------------------------------------------------------
100%
×
0.4%
=
=
Summary of Contents for WA-9857
Page 26: ......
