Physics · 2021
JEE Main · 16 March 2021, Shift 1 · Q1
For an electromagnetic wave travelling in free space, the relation between average energy densities due to electric ( U_e ) and magnetic ( U_m )…
For an electromagnetic wave travelling in free space, the relation between average energy densities due to electric $\displaystyle \left(\mathrm{U}_{\mathrm{e}}\right)$ and magnetic $\displaystyle \left(\mathrm{U}_{\mathrm{m}}\right)$ fields is :
Official answer
(1)
$\displaystyle \mathrm{U}_{\mathrm{e}}=\mathrm{U}_{\mathrm{m}}$
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.