According to Weber's law,how many grams would have to be added to a 150-gram weight to get a just noticeable difference?
A)1 g
B)3 g
C)8)5 g
D)25 g

Question

Quizplus · Accepted Answer

Weber's law states that the difference threshold (or just noticeable difference) is a constant proportion of the original stimulus. The constant proportion is known as the Weber fraction, and it varies depending on the sensory modality and specific stimulus being used. For weights, the Weber fraction is about 0.02. Therefore, to calculate the just noticeable difference for a 150-gram weight, you would multiply 150 by 0.02 to get 3 grams. Therefore, choice B (3 g) is the correct answer.

According to Weber's Law,how Many Grams Would Have to Be