What is the wave number of a beam of light in air if its frequency is $14 \times 10^{14}$ Hz.

4.667 \times 10^{8} m^{- 1}

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

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

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

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Solution

The correct option is C $4.667 \times 10^{6} m^{- 1}$ .
wave number is actually increase in the wavelength
$f = 14 \times 10^{14} H z$
$W = c \times f$
$2.5 \times 10^{- 7} m$
wavenumber in the inverse of wavelength
$4.6 \times 10^{6} m^{- 1}$

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What is the wave number of a beam of light in air if its frequency is 14×1014 Hz.

The correct option is C 4.667×106m−1.wave number is actually increase in the wavelengthf=14×1014HzW=c×f2.5×10−7mwavenumber in the inverse of wavelength4.6×106m−1

What is the wave number of a beam of light in air if its frequency is $14 \times 10^{14}$ Hz.

The correct option is C $4.667 \times 10^{6} m^{- 1}$ .
wave number is actually increase in the wavelength
$f = 14 \times 10^{14} H z$
$W = c \times f$
$2.5 \times 10^{- 7} m$
wavenumber in the inverse of wavelength
$4.6 \times 10^{6} m^{- 1}$