Question

Во сколько раз изменится длина звуковой волны при переходе звука из воздуха в воду, если скорость звука в воде равна 1500м/с, а в воздухе равна 340 м/с

Answer 1

Поделить скорости друг на друга, т. к. частота не меняется

Answer 2

Calculating the Change in Wavelength of Sound

When sound travels from one medium to another, such as from air to water, the wavelength of the sound wave changes. The formula to calculate the change in wavelength is given by:

Δλ/λ = V1/V2

Where: - Δλ is the change in wavelength - λ is the initial wavelength - V1 is the initial speed of sound in the first medium - V2 is the speed of sound in the second medium

Applying the Formula

Given: - Speed of sound in water (V2) = 1500 m/s - Speed of sound in air (V1) = 340 m/s

Using the formula, we can calculate the change in wavelength of the sound wave as it travels from air to water.

Δλ/λ = V1/V2

Δλ/λ = 340/1500

Δλ/λ ≈ 0.2267

Conclusion

The change in the wavelength of the sound wave when it travels from air to water is approximately 0.2267 times the initial wavelength.

This means that the wavelength of the sound wave decreases by a factor of approximately 0.2267 when it travels from air to water.