Verified Solution • 2025–26 Session moderate

QNEET-2017-Ph-979: NEET 2017 Physics - Class 12 NEET-2017-Ph-979 Solution: In an electromagnetic wave in free space that root mean square…

In an electromagnetic wave in free space that root mean square value of the electric field is Erms=6 V m−1E_{rms} = 6\ \text{V m}^{-1}. The peak value of the magnetic field is 2.83×10−8 T2.83 \times 10^{-8}\ \text{T} 0.70×10−8 T0.70 \times 10^{-8}\ \text{T} 4.23×10−8 T4.23 \times 10^{-8}\ \text{T} 1.41×10−8 T1.41 \times 10^{-8}\ \text{T}

Multiple Choice Options

  • A 2.83 ×\times _ 10 −- _ 8 T
  • B 0.70 ×\times _ 10 −- _ 8 T
  • C 4.23 ×\times _ 10 −- _ 8 T
  • D 1.41 ×\times _ 10 −- _ 8 T

Step-by-Step Verified Solution

The rms value of magnetic field B rms = E r m s c = 6 ( 3 _ 10 8 ) = 2 _ 10 � 8 T Now peak value of magnetic field B peak = 2 B r m s = 2.83 _ 10 _ 8 T

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