contestada

Two sound sources generate pure tones of 65 Hz and 75 Hz. What is the beat frequency?




a
15Hz
b
20Hz
c
10Hz
d
5Hz

Respuesta :

Answer:

  • D) 5 Hz

Explanation:

First, prime factorize the two pure tone values.

  • 65 = 5 x 13
  • 75 = 5 x 5 x 3

It is clear that the Highest Common Factor (HCF) is 5

The two tones can only be pure if they resonate from the same beat frequency.

As 5 is a common factor, it is the beat frequency.