Question

Calculate the wavenumber and frequency of yellow radiation having wavelength 5800A°

Answer 1

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Answer 2

Answer :

Given -

• Wavelength of yellow radiation = 5800 A

To Find -

• Wavelength
• Frequency

Solution -

λ = 5800 A

= 5800 × 10^{-8} m

= 5800 × 10^{-10} m

Wavelength = 1/λ = 1/5800 × 10^{-10} m

⇒ 1.724 × 10⁶ m^{-1}

⇒ 1.724 × 10⁴ cm^{-1}

Therefore, Wavelength = 1.724 × 10⁴ cm^{-1}

Frequency = c/λ

⇒ 3 × 10⁸/5800 × 10^{-10}

⇒ 5.172 × 10¹⁴ s^{-1}

Therefore, Frequency = 5.172 × 10¹⁴ s^{-1}