Question

I need help on this math it’s 7th grade

Answer 1

The wavelength of red light is 2 times longer than the wavelength of violet light.

Explanation:

8 times 10^-7 written in standard form is 0.0000008

4 times 10^-7 written in standard form is 0.0000004

divide both of them:

=2

Answer 2

4 times as long

Explanation:

If im wrong, delete this.