The electric field in a plane electromagnetic wave is given by E z = 60 cos ( 5 x + 1.5 × 1 0 9 t ) V / m . Then expression for the corresponding magnetic field is (here subscripts denote the direct

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The electric field in a plane electromagnetic wave is given by E z ​ = 60 cos ( 5 x + 1.5 × 1 0 9 t ) V / m . Then expression for the corresponding magnetic field is (here subscripts denote the direction of the field) :NEET 2025

TestHub · Accepted Answer

​ v = k ω ​ = 5 1.5 × 1 0 9 ​ = 3 × 1 0 8 m / s B 0 ​ = v F 0 ​ ​ = 3 × 1 0 8 60 ​ = 20 × 1 0 − 8 = 2 × 1 0 − 7 T ​ B y ​ = 2 × 1 0 − 7 cos ( 5 x + 1.5 × 1 0 9 t ) T

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