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QJEEM21Ph92d0: JEE Main 2021 Physics - Class 12 JEEM21Ph92d0 Solution: A plane electromagnetic wave with frequency of 30 MHz travels…

A plane electromagnetic wave with frequency of 30 MHz travels in free space. At particular point in space and time, electric field is 6 V/m. The magnetic field at this point will be x ×\times 10 −- 8 T. The value of x is ___________.

Step-by-Step Verified Solution

∣B∣ =∣E∣C=63×108|B|\, = {{|E|} \over C} = {6 \over {3 \times {{10}^8}}}

= 2 ×\times 10 −- 8 T

∴\therefore x = 2

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