Question

it is determined that a certain light wave has a wavelength of 3.012x10^-12 m. the light travels at 2.99x10^8 m/s. what is the frequency of the light wave

Answer 1

`9.93* 10^(19)Hz`

Step-by-step explanation:

Speed of light is the product of its wavelength and frequency, expressed as

S=fw

Where s represent speed, f is frequency while w is wavelength

Making f the subject of the formula then

f=s/w

Substituting 2.99x10^8 m/s for s and 3.012x10^-12 m for w then

`f=\frac {2.99* 10^(8)}{3.012* 10^(-12)}=9.926958831341* 10^(19)\\f\approx 9.93* 10^(19)Hz`

Therefore, the frequency equals to
`9.93* 10^(19)Hz`