Question

Light with wavelength 4500 Å in water is travelling in water of refractive index 4/3. What is the frequency of the light? (give
that speed of light in vacuum = 3 x 108 m/s)
Select an answer
A
4 x 1014 Hz
B
5 x 1014 HZ
1.33 x 1014 HZ
4.5 x 1014 Hz​

Answer 1

Answer:

A. 4×1014Hz 5×1914JZ fyjhgffbffjjtrj

Answer 2

Option B is the correct one since the frequency of light in water is 5 x 1014 Hz.

• Because the refractive index of water is known, the first step in solving this puzzle is to determine the speed of light in water. By dividing the speed of light in vacuum by the medium's refractive index, one may determine the speed of light in any given media.

• Thus, the formula for the speed of light in water is: Speed of light in water = Speed of light in air / Water's refractive index.

2.25 x 108 m/s is equal to 3 x 108 m/s / 4/3.

• We may now use the equation: wavelength x frequency Equals speed of light.

• to determine the light's frequency in water. Because the wavelength of the light in water is known to be 4500, we can rewrite the equation to find the frequency:

Wavelength / Light-Speed Equation for Frequency

• Frequency is calculated by substituting the data we obtain: 2.25 x 108 m/s / (4500 x 10-10 m) = 5 x 1014 Hz.

For more questions on Physics

https://brainly.in/question/55925333

#SPJ3