Respuesta :

dsdrajlin

Answer:

4.741 × 10¹⁴ Hz

Explanation:

Step 1: Given data

  • Wavelength of the He-Ne laser (l): 632.8 nm
  • Frequency of the He-Ne laser (n): ?
  • Speed of light (c): 3.000 × 10⁸ m/s

Step 2: Convert "l" to meters

We will use the conversion factor 1 m = 10⁹ nm.

632.8 nm × (1 m / 10⁹ nm) = 6.328 × 10⁻⁷ m

Step 3: Calculate the frequency of the He-Ne laser

We will use the following expression.

c = l × n

n = c / l

n = (3.000 × 10⁸ m/s) / (6.328 × 10⁻⁷ m)

n = 4.741 × 10¹⁴ s⁻¹ = 4.741 × 10¹⁴ Hz

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