What is the frequency of a 670 nm light wave?

4.5 x 106 s-1

2.2 x 106 s-1

2.2 x 1014 s-1

4.5 x 1014 s-1

c = f * wavelength.

c = 3 * 10^8 m/s

f = ??

lambda (wavelength) = 670 * 10 ^-9

3*10^8 = f * 670 *10^-9

3 * 10^8/670* 10^-9 =4.48 * 10 ^14 /s

Explanation:

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i think? ?

the answer is c. nacl