JEE Mains · Physics · STD 12 - 8. Electromagnetic waves
The magnetic field in a travelling electromagnetic wave has a peak value of \(20\ n T\). The peak value of electric field strength is......\(Vm^{-1}\)
- A \(3 \)
- B \(6 \)
- C \(9\)
- D \(12\)
Answer & Solution
Correct Answer
(B) \(6 \)
Step-by-step Solution
Detailed explanation
From question, \(\mathrm{B}_{0}=20 \mathrm{nT}=20 \times 10^{-9}\, \mathrm{T}\) (\(\because\) velocity of light in vacuum \(\mathrm{C}=3 \times 10^{8}\, \mathrm{\,ms}^{-1}\))…
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