Calculate the wavelength for red light

[max2040uk]

Homework Statement

The frequency of red light is 430THz calculate its wave length. Is the answer below correct?

Homework Equations

(3*10^8) / (430*10^12) = wave length

The Attempt at a Solution

(3*10^8) / (430*10^12) = 6.98 to 1 Decimal Place

 

[Doc Al]

You are off by some power of ten. What's 10⁸/10¹²?

 

[max2040uk]

Hi thanks for the reply at the end of the calculator is said e-7 (10^-7) stupid mistake. Thank you for your time :)