Green light has a wavelength of 4.96 10-7 m and travels through the air at a speed of 3.00 108 m/s. Calculate the period of green light waves with this wavelength.
s
What is the frequency?
Hz
frequency = speed/wavelength
period = 1/frequency = wavelength/speed
To calculate the period of a wave, you can use the formula:
Period (T) = 1 / Frequency (f)
Given the wavelength of green light (λ) is 4.96 x 10^-7 m, we can use the formula to find the frequency (f).
Speed of light (c) = 3.00 x 10^8 m/s
The formula for the speed of light is:
c = λ * f
Rearranging the equation to solve for frequency:
f = c / λ
Substituting the values into the equation:
f = (3.00 x 10^8 m/s) / (4.96 x 10^-7 m)
f ≈ 6.05 x 10^14 Hz
So, the frequency of green light is approximately 6.05 x 10^14 Hz.
To calculate the period, we use the formula:
T = 1 / f
Substituting the frequency into the equation:
T = 1 / (6.05 x 10^14 Hz)
T ≈ 1.65 x 10^-15 s
Therefore, the period of green light waves with a wavelength of 4.96 x 10^-7 m is approximately 1.65 x 10^-15 seconds.