2. Solved Papers
  3. CEE Kerala Engineering

CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2007

  • question_answer
    A. The wavelength of microwaves is greater than that of UV-rays. B. The wavelength of IR rays is lesser than that of UV-rays. C. The wavelength of microwaves is lesser than that of IR rays D. Gamma rays have shortest wavelength in the electromagnetic spectrum. Of the above statements

    A)  A and B are true

    B)  B and C are true

    C)  C and D are true

    D)  A and Care true

    E)  A and D are true

    Correct Answer: E

    Solution :

    The wavelength order of the given types of waves are given below- Waves                 Wavelength Range (in metre) Gamma rays       \[{{10}^{-14}}-{{10}^{-10}}\] IR-rays                  \[7\times {{10}^{-7}}-{{10}^{-3}}\] UV-rays                \[{{10}^{-9}}-4\times {{10}^{-7}}\] Microwaves       \[{{10}^{-4}}-{{10}^{0}}\] Hence, statements (A) and (B) are correct.


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