Question

Blue light has a typical frequency of 6.67 x 10 14 1014 Hz. What is the wavelength associated with this frequency?

Answer 1

First recall the equation that relates frequency to wavelength:

v = fw

Note that the v is the speed of light, a constant. Now plug in the information we know!

(3×10^8) = (6.67 × 10^14) w

Hit the numbers on the calculator and you'll get the wavelength, w. If you comment your answer I'll check it for you. :)

Answer 2

Wavelength = (speed) / (frequency)

= (3 x 10⁸ m/s) / (6.67 x 10¹⁴ Hz)

= 0.45 x 10⁻⁶ meter

= 450 nanometers .