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The sound of a plucked guitar string travels through the air and strikes the eardrum of a person in the same room. How does the sound wave change when it transfers from the air to the person’s eardrum?



Both the speed and the wavelength of the sound change.



Neither the speed nor the wavelength of the sound change.



Both the frequency and the wavelength of the sound change.



Neither the frequency nor the wavelength of the sound change

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onyebuchinnaji

When sound wave travels from air to a person's eardrum, both the speed and the wavelength of the sound change.

Refractive index of sound

The refractive index of sound is obtained from the ratio of speed of sound in air to speed of sound in material.

refractive index = speed of sound in vacuum / speed of sound in material

refractive index = wavelength of sound in material / wavelength of sound in vacuum

Note: the frequency sound will remain constant.

Thus, when sound wave travels from air to a person's eardrum, both the speed and the wavelength of the sound change.

Learn more about refraction of sound sound waves here: https://brainly.com/question/1199084

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