Light of wavelength 550nm in air is found to travel at 1.96
x108m/s in a certain liquid. determine thefrequency of
the light in the liquid?

ν = 5.45 x 10¹⁴ Hz

Explanation:

given,

wavelength of light = 550 nm

                                = 550 x 10⁻⁹ m

speed of light = 1.96 x 10⁸ m/s

speed of sound = 3 x 10⁸ m/s

frequency of the light = ?

we know.

frequency of the light in the liquid is same as the frequency of the light in the air.

 ν is the frequency of light

    ν = 5.45 x 10¹⁴ Hz

Hence, the frequency of light in the liquid is equal to ν = 5.45 x 10¹⁴ Hz

explanation:

as the height from which the ruler was dropped increased, the speed of the ruler at ryan's hand increased.

the answer is 12 as i may remember

: )