1. Tardigrade
  2. Question
  3. Physics
  4. A red colour in air has wavelength 760 nm when light passes through water of refractive index (n-(4/3)), wavelength becomes 570 nm. (wavelength of yellow colour in air is 570 nm ). Then colour of red light in water is

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. A red colour in air has wavelength $760\, nm$ when light passes through water of refractive index $\left(n-\frac{4}{3}\right)$, wavelength becomes $570 \,nm$. (wavelength of yellow colour in air is $570\, nm$ ). Then colour of red light in water is

Ray Optics and Optical Instruments

Solution:

Colour of a wave depends more on frequency than wavelength as it depicts the amount of energy is carries. Since frequency and energy doesnot change it will simply remain red.