A plane electromagnetic wave travels in free space along x-axis. At a particular point in space, the electric field along y-axis is `9.3 V m^(–1)`. The magnetic induction (B) along z-axis is

Options

A. `3.1 xx 10^(-8)T`
B. `3 xx 10^(-5)T`
C. `3 xx 10^(-6)T`
D. `9.3 xx 10^(-6)T`

Answer

A

Explanation

`c= (E)/(B)`
`implies B= (9.3)/(3 xx 10^(8))= 3.1 xx 10^(-8)T`