NEET · Physics · STD 12 - 8. Electromagnetic waves
The magnetic field in a plane electromagnetic wave is given by, \(B_{y}=2 \times 10^{-7} \sin \left(\pi \times 10^{3} x+3 \pi \times 10^{11} t\right) \;T\) Calculate the wavelength.
- A \(\pi \times 10^{-3} \;m\)
- B \(\pi \times 10^{3} \;m\)
- C \(2 \times 10^{-3} \;m\)
- D \(2 \times 10^{3} \;m\)
Answer & Solution
Correct Answer
(C) \(2 \times 10^{-3} \;m\)
Step-by-step Solution
Detailed explanation
\(B_{y}=2 \times 10^{-7} \sin \left(\pi \times 10^{3} x+3 \pi \times 10^{11} t \right) T\) General equation of magnetic field vector
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