12. The red light emitted by a He-Ne laser has a wavelength of 6.33 x 10^-7 m in the air and travels 3.0 x 10^8 m/s. Find the frequency of the laser light. *

f = 4.76 × 10^14 Hz

Frequency of the laser light f = 4.76 × 10^14 Hz

Explanation:

Given;

wavelength = 6.33 x 10^-7 m

Speed of light v = 3.0 x 10^8 m/s.

Frequency of the laser light f

= speed of light/wavelength

Substituting the given values;

f = 3.0 x 10^8 m/s ÷ 6.33 x 10^-7 m

f = 4.76 × 10^14 Hz

Frequency of the laser light f = 4.76 × 10^14 Hz

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