Question

The wavelength of the color red is about 6.5 × 10−9 m. The wavelength of the color blue is about 4.75 × 10−9 m. Show that the wavelength of red is longer than the wavelength of blue.

Answer 1

Answer:

All electromagnetic waves travels at the same speed in vacuum i.e 3×10

8

m/s. Due to the absence of matter, there is no change in speed corresponding to wavelength. There is no absorption and re-emission of light in the absence of matter.

Hope it would help you.