In Example 13.6, we considered the beats produced by two guitar strings and found that g...

In Example 13.6, we considered the beats produced by two guitar strings and found that given only the beat frequency, there are two possible solutions for the frequency produced by the second string: Suppose the beat frequency increases when the tension in the first string is increased. Which of these solutions for is now the correct one?

(a) 243 Hz

(b) 251 Hz

(c) We still can’t tell.

(reference example 13.6)