Question

Given light with frequencies of: 5.5 x 1014 Hz, 7 x 1014 Hz and 8 x 1014 Hz, calculate the wavelengths in free space. What color are these waves?

Answer 1

Answer:

Explanation:

Given light with frequencies of  5.5 x 10¹⁴ Hz, 7 x  10¹⁴ Hz and 8 x  10¹⁴ Hz

we now, $\lambda = \dfrac{c}{\nu}$

now

1)   $\lambda_1 =\dfrac{3\times 10^8}{5.5\times 10^{14}}$

                      = 545.45 nm

2)   $\lambda_2 = \dfrac{3\times 10^8}{7\times 10^{14}}$

                      = 428.57 nm

3)   $\lambda_3 = \dfrac{3\times 10^8}{8\times 10^{14}}$

                      =  375 nm

the color related to wavelength are

545.45 nm - green

428.57 nm - blue

375 nm - violet