What Is the Frequency of a Helium-Neon Laser Light with a Wavelength

question 141

Multiple Choice

What is the frequency of a helium-neon laser light with a wavelength of 632.8 nm? The speed of light is 3.00 × 10⁸ m/s.

• A)4.74 × 10¹⁴ s^-1
• B)4.74 × 10⁵ s^-1
• C)2.11 × 10^-15 s^-1
• D)1.58 × 10^-15 s^-1

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