Weber Fraction Problems
1. A subject can just barely tell the difference between the brightness of two light bulbs. The Weber fraction for vision is 1/60. The difference threshold is 2 (measured in watts). How bright is the standard stimulus?
2. If the Weber fraction for the kinesthetic sense is 1/50, then for a standard stimulus of 500 grams, what is the difference threshold?
3. A taste-tester can just barely tell the difference between a 30% sugar solution and a 40% sugar solution. What is the Weber fraction?