Question

which colour of light has the longest wavelength ?....option ..1)violet ...2)red... 3)blue... 4)green...

Answer 1

Hola there..

The colour that have the longest wavelength is red.

Ans: (2) option i.e. "RED"

Hope this helps....:)

Answer 2

Answer:

The correct answer of this question is option 2,red.

Explanation:

There are seven basic colours in the normal light spectrum.

And the wavelength of those seven colours are completely different from each other.

That's why we can distinguish between them.

The longest wavelength is occupied by the red colour.

That's why the correct answer of this question is option 2.