Question

Green light has a wavelength of about 510 nm and travels at a speed of 3.00 × 108 m/s.

The frequency of green light, rounded to the nearest tenth and written in scientific notation, is
× 1014 Hz.

Answer 1

f = c/λ = (3.00×10^8 m/s) / (510×10^-9 m) = 3.00×10^8 / 5.10×10^-7 = 5.88235×10^14 Hz ≈ 5.9×10^14 Hz.