JEE Mains · Physics · STD 12 - Electromagnetic waves
- JEE Mains 2024
- Hard
- MCQ
The magnetic field in a plane electromagnetic wave is \(\mathrm{B}_y=\left(3.5 \times 10^{-7}\right) \sin \left(1.5 \times 10^3 \mathrm{x}+0.5\right.\) \(\left.\times 10^{11} \mathrm{t}\right) \mathrm{T}\). The corresponding electric field will be _______.
Pick an option to check your answer.
Answer & Solution
Correct Answer
(B) \(\mathrm{E}_{\mathrm{z}}=105 \sin \left(1.5 \times 10^3 \mathrm{x}+0.5 \times 10^{11} \mathrm{t}\right) \mathrm{Vm}^{-1}\)
Step-by-step Solution
Detailed explanation
\(\mathrm{E}_0=\mathrm{B}_0 \mathrm{C}\)
\(\mathrm{E}_0=3 \times 10^8 \times\left(3.5 \times 10^{-7}\right) \sin \left(1.5 \times 10^3 \mathrm{x}+0.5 \times 10^{11} \mathrm{t}\right)\)
\(\mathrm{E}_0=105 \sin \left(1.5 \times 10^3 \mathrm{x}+0.5 \times 10^{11} \mathrm{t}\right) \mathrm{Vm}^{-1}\)
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