In this lab we did, we measured the angles of light that came through a piece of this special plastic. We had to find out the index of refraction for each of the angles of incidence in two different cases. The question asks "Is there a good agreement between the two values for the index of refraction of plate glass?" What do they mean by "good agreement"?
When they ask if there is a "good agreement" between the two values for the index of refraction of plate glass, they are referring to how close or similar the two values are to each other. In other words, they want to know if the calculated index of refraction for the two different cases of light passing through the special plastic are reasonably close or consistent with each other.
To determine if there is a good agreement, you can compare the two values of the index of refraction. There are a few ways to do this:
1. Calculate the percentage difference: Subtract one value of the index of refraction from the other and divide the result by the average of the two values. Then, multiply the result by 100 to get the percentage difference. If the percentage difference is relatively small, it indicates a good agreement.
2. Compare the values to a known or accepted reference value: Look up the commonly accepted or known value for the index of refraction of plate glass. Compare the two calculated values to this reference value. If both calculated values are close to the reference value, it suggests a good agreement.
3. Examine the experimental uncertainties: Consider the uncertainties or errors associated with the measurements and calculations. If the uncertainties for both measurements are relatively small and overlap, it indicates good agreement.
Ultimately, the goal is to assess if the two values for the index of refraction are reasonably close and consistent with each other, implying a reliable measurement and calculation.