To calculate the wavelength, you need to use the formula:
wavelength = speed of the wave / frequency
Since the speed of the wave is not provided, we'll assume it to be the speed of light, which is approximately 3 x 10^8 meters per second.
First, we need to convert the amplitude from centimeters to meters: Amplitude = 0.5 cm = 0.5 x 0.01 m = 0.005 m
Now we can calculate the wavelength:
wavelength = (speed of light) / frequency = (3 x 10^8 m/s) / 1.3 Hz ≈ 2.31 x 10^8 meters
Therefore, the wavelength, with an amplitude of 0.5 cm and a frequency of 1.3 Hz, is approximately 2.31 x 10^8 meters.