What is the wavenumber of a wave with a wavelength of 200 nm? - ATOMIC STRUCTURE Quiz | GKFix.in

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Question

What is the wavenumber of a wave with a wavelength of 200 nm?

A. 2.5 × 10⁴ cm⁻¹
B. 3.0 × 10⁴ cm⁻¹
C. 4.0 × 10⁴ cm⁻¹
D. 5.0 × 10⁴ cm⁻¹

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