Solve this: Q 30 A red colour in air has wavelength 760 nm when light passes through water of - Physics - Ray Optics And Optical Instruments

Question

Solve this:
Q 30 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
(1) Red
(2) Green
(3) Yellow
(4) Blue

Deepak Kumar · Accepted Answer

Dear Student ,

it will appear with the same colour
So option(1) is correct here

Regards

Solve this: Q.30. 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 (1) Red (2) Green (3) Yellow (4) Blue

Solve this:
Q.30. A red colour in air has wavelength 760 nm when light passes through water of refractive index $(n = \frac{4}{3})$ , wavelength becomes 570 nm. (wavelength of yellow colour in air is 570 nm). Then colour of red light in water is
(1) Red
(2) Green
(3) Yellow
(4) Blue