To find the period of a wave, we can use the formula:
Period (T) = 1 / Frequency (f)
The velocity of a wave can be expressed as:
Velocity (v) = Wavelength (λ) × Frequency (f)
Rearranging the equation, we have:
Frequency (f) = Velocity (v) / Wavelength (λ)
Given that the velocity of the wave is 360 m/s and the wavelength is 120 cm (or 1.2 m), we can substitute these values into the equation:
Frequency (f) = 360 m/s / 1.2 m = 300 Hz
Now, we can find the period by taking the reciprocal of the frequency:
Period (T) = 1 / Frequency (f) = 1 / 300 Hz ≈ 0.00333 s
Therefore, the period of the wave is approximately 0.00333 seconds.