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The electric in an electromagetic wave i...

The electric in an electromagetic wave is given by E=(100 N/C)`sinomega(t-(X)/(C ))`.
If the energy contained in a cylinder of coss-section `10 cm^(2)` and length 50 cm along the X-axis is `4.4xx10^(-8)J//m^(3)`, then find intensity of the wave.

A

`12.4 W//m^(3)`

B

`13.2 W//m^(3)`

C

`15.7 W//m^(3)`

D

`11.9W//m^(3)`

Text Solution

Verified by Experts

(b) `l=(1)/(2)epsiE_(0)^(2)c=(4.4xx10^(-8))xx(3xx10^(8))=132 W//m^(2)`
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