STANDARDPhysics-Electromagnetic Waves
STANDARD Physics Wave Properties MCQ Question
Type: MCQ-numerical-Medium-Class 12
In the previous question, the amplitude of magnetic field part of the given wave is
A
2 × 10⁻⁸ T
B
1.03 × 10⁻⁸ T
C
4.22 × 10⁻⁸ T
D
5 × 10⁻⁸ T
Correct Answer
Option B
Detailed Explanation
The amplitude of the magnetic field B₀ is related to the electric field E₀ by B₀ = E₀/c, where c is the speed of light. Given E₀ = 3.1 N C⁻¹, B₀ = 3.1 / (3 × 10⁸) = 1.03 × 10⁻⁸ T.
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