NEET Class neet Answered
please answer this
Asked by Prashant DIGHE | 27 Jan, 2020, 10:41: PM
Expert Answer
Propagation direction of elecromagnetic wave is +z direction.
Hence direction of magnetic field and electric field are perpendicular to +z-direction.
In addition to that electric field and magnetic field are mutually perpendicular.
Magnitude of electric field and magnetic field are related as, |E| / |B| = c , where c is speed of light.
By considering all the above requirements of electric field and magnetic field in electromagnetic wave,
we get electric field E as , E = 15 × 10-8 
V/m
V/m( if E = -15 × 10-8 V/m , then propagation direction of electromagnetic wave become -z direction.
V/m , then propagation direction of electromagnetic wave become -z direction. Hence we can not choose that option )
Answered by Thiyagarajan K | 28 Jan, 2020, 07:56: AM
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