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

Options

A. a)`3.1xx10^(-8)T`
B. b)`3xx10^(-5)T`
C. c)`3xx10^(-6)T`
D. d)`9.3xx10^(-6)T`

Answer

A

Explanation

Using the relation
`c=(E_(0))/(B_(0))`
`B_(0)=(E_(0))/(c)=(9.3)/(3xx10^(8))=3.1xx10^(-8)T`