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JEE Main & Advanced Chemistry Structure of Atom / परमाणु संरचना Question Bank Self Evaluation Test - Structure of Atom

  • question_answer
    Arrange the electromagnetic radiations a, b, c, d and e in increasing order of energy. Frequencies of a, b and c are \[{{10}^{15}},{{10}^{14}}\] and \[~{{10}^{17}}\] respectively whereas wavelength of d and e are 350 nm and 100 nm respectively?

    A) a, b, c, d, e     

    B) a, b, d, e, c

    C) a, d, b, e, c      

    D) b, a, d, e, c

    Correct Answer: D

    Solution :

    [d] \[E=hv\] and    \[v=\left( \frac{c}{\lambda } \right)\] \[{{v}_{a}}={{10}^{15}},\,{{v}_{b}}={{10}^{14}},{{v}_{c}}={{10}^{17}},{{v}_{d}}=0.85\times {{10}^{15}}\] and    \[{{v}_{e}}=3\times {{10}^{15}},\]


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