(8%) Problem 5: You can determine the index of refraction of a substance by measuring its critical angle for total internal reflection. Randomized Variables c,w = 62.60 Forbes, David - david.forbes@doane.edu @theexpertta.com - tracking id: 9N69-72-B9-45-AB7A-36850. In accordance with Expert TA's Terms of Service, copying this information to any solutions sharing website is strictly forbidden. D so may result in termination of your Expert TA Account. 4 50% Part (a) What is the index of refraction of a substance that has a critical angle of 62.6 when submerged in water (with index of refraction 1.333)? Grade Summary nj = Deductions Potential 10 sin cosO tan() 7 8 9 HOME Submissions cotan( asin acos() PA 4 5 6 Attempts remainin (100% per attempt atan( acotan() sinh() 2 3 detailed view cosho tanh() cotanh() O END Degrees O Radians VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 2 Feedback: 0% deduction per feedback 4 50% Part (b) What would the critical angle be for this substance in air