If the semi-circular glass plate were submerged in ethyl alcohol (n=1.36) rather than air (n=1.00), its critical angle would be different from that found in this lab. What would be the critical angle for the semi-circular glass plate submerged in ethyl alcohol?

What is the critical angle for total internal reflection for glass in air? Assume that nglass= 1.50 and nair = 1.00.

When looking up from under water, you can see out of the water only through a circular "window" as shown here. Which of the following statements about this phenomenon is FALSE? You can still be seen by people above the water, even if they are above the dark part O You can only see what is directly above the circle You see this effect looking up from under water, but not looking down from above water O The dark part in the picture is actually a reflection of under the water

To determine the index of refraction of a substance you measured its critical angle.   (a)Calculate the index of refraction of a substance that has a critical angle of 63.00 ° when submerged in water of index of refraction 1.333.   (b)Calculate the critical angle for this substance when it is submerged in Glycerine of index of refraction of 1.473.

You can determine the index of refraction of a substance by determining its critical angle. (a) What is the index of refraction of a substance that has a critical angle of 51.0° when submerged in carbon tetrachloride, which has an index of refraction of 1.461? (b) What would the critical angle be for this substance in air?

Problem 18.28 A 1.8-m-tall diver is standing completely submerged on the bottom of a swimming pool, in 3.0 m of water. You are sitting on the end of the diving board, almost directly over her. ▾ Part A How tall does the diver appear to be? Express your answer with the appropriate units. for Peint for Party do for Part redo foart A refor Part A keyboard shortcuts for Part A help for Part A Value Submit Provide Feedback Request Answer Units