Q.
The refractive index of water measured by the relation μ= apparent depth real depth is found to have values of 1.34, 1.38, 1.32 and 1.36; the mean value of refractive index with percentage error :-
3226
231
Physical World, Units and Measurements
Report Error
Solution:
The mean value of refractive index, μ=41.34+1.38+1.32+1.36=1.35
and Δμ=4∣(1.35−1.34)∣+∣(1.35−1.38)∣+∣(1.35−1.32)∣+∣(1.35−1.36)∣ =0.02
Thus μΔμ×100=1.350.02×100=1.48%