JEE Mains · Physics · STD 12 - 8. Electromagnetic waves
A plane electromagnetic wave of frequency \(500\, MHz\) is travelling in vacuum along \(y-\)direction. At a particular point in space and time, \(\overrightarrow{ B }=8.0 \times 10^{-8} \hat{ z } \;T\). The value of electric field at this point is (speed of light \(\left.=3 \times 10^{8}\, ms ^{-1}\right)\) \(\hat{ x }, \hat{ y }, \hat{ z }\) are unit vectors along \(x , y\) and \(z\) direction.
- A \(-24 \hat{ x }\, V / m\)
- B \(2.6 \hat{ x }\, V / m\)
- C \(24 \hat{ x }\, V / m\)
- D \(-2.6 \hat{ y }\, V / m\)
Answer & Solution
Correct Answer
(A) \(-24 \hat{ x }\, V / m\)
Step-by-step Solution
Detailed explanation
\(f =5 \times 10^{8} Hz\) EM wave is travelling towards \(+\hat{j}\) \(\overrightarrow{ B }=8.0 \times 10^{-8} \hat{ z } T\)…
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