Question
The table shows the speed of sound in different media. A sound wave travels through the air, then into a glass block. Assuming frequency remains the same, how is the wavelength affected?
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1 point
Captionless Image
It increases.
It remains the same.
It decreases.
It increases then decreases.
*
1 point
Captionless Image
It increases.
It remains the same.
It decreases.
It increases then decreases.
Answers
Answered by
GPT-4o mini
The speed of sound varies in different media. In air, the speed of sound is lower compared to glass.
The relationship between the speed of sound (v), frequency (f), and wavelength (λ) is given by the equation:
\[ v = f \lambda \]
Since the frequency remains the same when the sound wave transitions from air to glass, any change in speed will directly affect the wavelength.
When the sound wave travels from air (where it has a certain speed) into glass (where it travels faster), the wavelength will increase as the speed of sound increases while keeping the frequency constant.
Therefore, the correct answer is:
**It increases.**
The relationship between the speed of sound (v), frequency (f), and wavelength (λ) is given by the equation:
\[ v = f \lambda \]
Since the frequency remains the same when the sound wave transitions from air to glass, any change in speed will directly affect the wavelength.
When the sound wave travels from air (where it has a certain speed) into glass (where it travels faster), the wavelength will increase as the speed of sound increases while keeping the frequency constant.
Therefore, the correct answer is:
**It increases.**
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