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NEET UG CHEMISTRY MCQ: STRUCTURE OF ATOM

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The wave number of radiation of wavelength 500 nm is:

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Correct option: C

2 \times {10^6}{\mathrm{m}^{ - 1}}

Option C (

2 \times {10^6}{\mathrm{m}^{ - 1}}

) is correct because wave number is the reciprocal of wavelength, and converting 500 nm to meters and taking the reciprocal gives

2 \times 10^6 m^{-1}

.

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