If the wavelength of a wave is lambda = 6000 | vedclass

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Question

(C) The wave number $\bar{
u}$ is defined as the reciprocal of the wavelength $\lambda$.$\bar{
u} = \frac{1}{\lambda}$Given,$\lambda = 6000 \mathrin

Vedclass · Accepted Answer

$1.66 	imes 10^6 \ m^{-1}$

Vedclass · Answer

(C) The wave number $\bar{
u}$ is defined as the reciprocal of the wavelength $\lambda$.$\bar{
u} = \frac{1}{\lambda}$Given,$\lambda = 6000 \mathring{A} = 6000 	imes 10^{-10} \ m = 6 	imes 10^{-7} \ m$.Substituting the value of $\lambda$ in the formula:$\bar{
u} = \frac{1}{6 	imes 10^{-7} \ m}$$\bar{
u} = \frac{1}{6} 	imes 10^7 \ m^{-1}$$\bar{
u} = 0.1666 	imes 10^7 \ m^{-1} = 1.66 	imes 10^6 \ m^{-1}$.Therefore,the correct option is $C$.

If the wavelength of a wave is $\lambda = 6000 \mathring{A}$,then the wave number will be:

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