Question

can someone help me with this physics Lab Vibrating String Experiment I'm confused please and thank you

Vibrating String Experiment Objective To study the factors affecting the velocity of waves in a stretched string. Apparatus Linear transducer, function generator, string, meter stick, mass set, table clamp with pulley. Optional: strobe light.

I have This data for the four-time I did the Experience

Answer 1

frequency, n = P- 2L

T frequencyn P X
,
T VelocityV
and
2L Wavelength P

P=Number of loops , $\lambda$ =wavelength , T=tension , ,   L= total length of the string.

linear density p = L

Tension T=mg g=9.8 m/s²

Now we can calculate Velocity (V), wavelength ($\lambda$) and frequency n.

For two nodes

-2, 2N 슾 IV

T-mg Number of Nodes=2 P=1 l=1.5m m=0.3kg. id=3m T=2.94 N 0.3 M -0.2 Kg.m) V 3.83 m/s Vu n=1.2767HZ

For three nodes

Z NA L.. Z M - I

Number of Nodes - 3 P-9, T=2.94, H=012 x=1.5m V=3.83 n=2.553H2

For four nodes

N N N A M T/ 씨

Number of Hades - 4 x=onson im P=3 n= 3.83 Hz

For five nodes

I TN I / 2y 라 | N NL Z MA I

Number of Nodesas P=4 , x=0.75m n=5.11H2

frequency, n = P- 2L

n2L Terp P

number of node=2 V_exp= 3.828 Hz

number of node=3. V_exp= 3.795 Hz

number of node=4     V_exp= 3.83 Hz

number of node=5    V_exp=3.8325 Hz

Average of V_exp= 3.8215 Hz

But V_th=3.83Hz

%

pecrcenterror =( Vtn – Verp ) 100 = 22 Vih

$\therefore$ Percent error in velocity = 22%