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JEE Main 202127 AugustEvening Shift
Exam
JEE Main
Year
2021
Date
27 August
Shift
Evening Shift
Subject
Physics
Chapter
Electromagnetic Waves

JEE Main 2021 · 27 August · Evening Shift · Physics · Electromagnetic Waves

A plane electromagnetic wave with a frequency of 30MHz travels in...

A plane electromagnetic wave with a frequency of 30MHz30MHz travels in free space. At a particular point in space and time, the electric field is 6Vm−16V{m}^{- 1}. The magnetic field at this point will be x×10−8Tx \times {10}^{- 8}T. The value of xx is,

Correct answer

0

Step-by-step solution

Recall the formula of the magnitude of the magnetic field in terms of the magnitude of the electric field, B=Ec=63×108=2×10−8TB = \dfrac{E}{c} = \dfrac{6}{3 \times {10}^{8}} = 2 \times {10}^{- 8}T, here cc is the speed of light in a vacuum.
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