Question

if the fundamental frequency of a certain string is 84 hz, what is the frequency of the second harmonic? 42 hz 84 hz 126 hz 168 hz

Answer 1

Fundamental frequency, f₀ = 84 Hz

Second harmonic is 2f₀ = 2* 84 Hz = 168 Hz

Answer 2

Answer: The frequency of the second harmonics is 168 Hz.

Step-by-step explanation:

Fundamental frequency is the frequency associated with the ground state energy level. It is denoted by
`f_0`

Second harmonic frequency is the frequency associated with the second energy level where n = 2. It is denoted by
`f_1`

The relationship between fundamental and second harmonic frequency is:

`f_1=2f_0`

We are given:

`f_0=84Hz`

Putting value in above relationship, we get:

`f_1=2* 84=168Hz`

Hence, the frequency of the second harmonics is 168 Hz.