Question

The frequency of violet light is 7. 7 x 10^14 hz. Find its wavelength if it’s speed vacuum is 3. 0 x 10^8 m/s. Use given, find, equation

Answer 1

3.9 x 10^-7 m.

Step-by-step explanation:

We know that the formula of speed is velocity = frequency x wavelength.
rearranging the equation we get wavelength= velocity/frequency.

If you plug in the value you get wavelength= 3.0 x 10^8 m/s / 7. 7 x 10^14 hz

wavelength= 0.00000038961 m and if you write it in standard form it

is 3.9 x 10^-7 m.