Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-12

  • question_answer
    Which of the following has the smallest wavelength?

    A)  Red                 

    B)  Blue

    C)  Green  

    D)  Violet

    Correct Answer: D

    Solution :

    \[\because \] \[E=\frac{hc}{\lambda }\]i.e. \[E\propto \frac{1}{\lambda },\](where) E = Energy, \[\lambda \]= Wave length Energy of violet is maximum anonm the given options, thus has smallest wave length.

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