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  • Which is the correct ascending order of wavelengths ?  Option: 1 <img alt="\mathrm{\lambda _{visible}< \lambda _{X-ray}< \lambda _{

Which is the correct ascending order of wavelengths ?
 

Option: 1

\mathrm{\lambda _{visible}< \lambda _{X-ray}< \lambda _{gamma-ray}< \lambda _{microwave}}


Option: 2

\mathrm{\lambda _{gamma-ray}< \lambda _{X-ray}< \lambda _{visible}< \lambda _{microwave}}


Option: 3

\mathrm{\lambda _{X-ray}< \lambda _{gamma-ray}< \lambda _{visible}< \lambda _{microwave}}


Option: 4

\mathrm{ \lambda _{microwave}< \lambda _{visible}< \lambda _{gamma-ray}<\lambda _{X-ray}}


Answers (1)

best_answer

Energy of electromagnetic waves are in the order

\mathrm{E_{\gamma -ray}> E_{X-ray}> E_{visible\, ray}> E_{microwave}}
\mathrm{E= \frac{hc}{\lambda}}

\mathrm{\therefore \, \lambda_{\gamma -ray}< \lambda_{X-ray}< \lambda_{visible ray}< \lambda_{microwave}}

The correct option is (2)
 

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