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

the arctic is a region of the planet, north of the arctic circle, and includes the arctic ocean, greenland, baffin island, other smaller northern islands, and the far northern parts of europe, russia (siberia), alaska and canada.