2. Sample Papers
  3. NEET

NEET Sample Paper NEET Sample Test Paper-5

  • question_answer
    In an electromagnetic wave, the electric and magnetizing fields are \[100V{{m}^{-1}}\] and\[0.265\text{ }A{{m}^{-1}}\]. The maximum energy flow is:

    A)  \[26.5\,W/{{m}^{2}}\]       

    B)  \[26.4\,W/{{m}^{2}}\]

    C)  \[46.7\,W/{{m}^{2}}\]       

    D)  \[765\,W/{{m}^{2}}\]

    Correct Answer: A

    Solution :

    Here,     \[{{E}_{0}}=100V/m,\] \[{{B}_{0}}=0.265A/m\] \[\therefore \]       maximum rate of energy flow             \[S={{E}_{0}}\times \frac{{{B}_{0}}}{{{\mu }_{0}}}\]                 \[=100\times 0.265=26.5\,W/{{m}^{2}}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner