Answer: 6.4 x 10^14Hz
Explanation:
velocity of blue light (V) = 3.0 x 10^8m/sec
wavelength (λ) = 465 nanometers
(4.65 x 10?m)
Since 1nanometer = 1 x 10^-9 meter
465 nanometer = 4.65 x 10^-7 meters
frequency (F) = ?
Recall that the frequency of a wave is the number of cycles the wave complete in one second, and its unit is Hertz.
So, apply the formula V = F λ
3.0 x 10^8m/sec = F x 4.65 x 10^-7 meters
F = (3.0 x 10^8m/sec / 4.65 x 10^-7 meters)
F = 6.4 x 10^14Hz
Thus, the frequency of the blue light is 6.4 x 10^14Hz
