The electric field of an electromagnetic wave in vacuum is given by

The electric field of an electromagnetic wave in vacuum is given by

Q. The electric field of an electromagnetic wave in vacuum is given by

The wave is reflected from the 𝑧 = 0 surface. If the pressure exerted on the surface is 𝛼𝜖0𝐸20, the value of 𝛼 (rounded off to one decimal place) is                       

Ans: 0.8

Sol:

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