If a 100-Hz tone had to be increased to 110 Hz for a subject to just notice the difference,you would predict that a 1000-Hz tone would have to be increased to
A) 1010 to be noticed.
B) 1050 to be noticed.
C) 1100 to be noticed.
D) 1200 to be noticed.

Question

Quizplus · Accepted Answer

Weber's Law states that the just noticeable difference between two stimuli is proportional to the magnitude of the stimuli. In this case, the difference between 100 Hz and 110 Hz is 10 Hz, which is 10% of the original frequency. Applying the same percentage increase to a 1000 Hz tone, we get an increase of 100 Hz (10% of 1000 Hz), which would result in a 1100 Hz tone that would be just noticeable to the subject.

If a 100-Hz Tone Had to Be Increased to 110