A sound wave travels through air at a speed of 340 m/s. If the frequency of the
Practice Questions
Q1
A sound wave travels through air at a speed of 340 m/s. If the frequency of the sound is 1700 Hz, what is the wavelength?
0.2 m
0.5 m
1 m
2 m
Questions & Step-by-Step Solutions
A sound wave travels through air at a speed of 340 m/s. If the frequency of the sound is 1700 Hz, what is the wavelength?
Correct Answer: 0.2 m
Step 1: Identify the speed of sound in air, which is given as 340 m/s.
Step 2: Identify the frequency of the sound wave, which is given as 1700 Hz.
Step 3: Write down the formula that relates speed (v), frequency (f), and wavelength (λ): v = fλ.
Step 4: Rearrange the formula to solve for wavelength (λ): λ = v / f.
Step 5: Substitute the values into the formula: λ = 340 m/s / 1700 Hz.
Step 6: Perform the division: λ = 0.2 m.
Wave Speed, Frequency, and Wavelength – This concept involves understanding the relationship between the speed of a wave (v), its frequency (f), and its wavelength (λ) using the formula v = fλ.
