W Trial
х
1
75.0 72.2
2
75.1
72.3
3
75.1 72.1
4
74.9
72.2
Which set of data is most likely the result of a systematic error?
Y
75.0
80.1
69.5
72.7
Z
86.2
86.7
71.5
70.8
w
Х
Z

massxgravity x heght=weightxheight= pe

4900=490xh

h=10

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.