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A plane electromagnetic wave of wave intensity 6W/m2 stikes a small mirror of area 40 cm2, held perpendicular to the approaching wave. The momentum transferred by the wave to the mirror each second is =1.6×10-10Kg-m/s

The radiation force on the mirror will be

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Important Questions on Electromagnetic Waves

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The rms value of the electric field of the light coming from the sun is 720 NC-1. The average total energy density of the Electromagnetic Wave is
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The electric field of a plane electromagnetic wave varies with time of amplitude 2 V m-1 propagating along Z-axis. The average energy density of the magnetic field is in J m-3
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The amplitude of the magnetic field part of a harmonic electromagnetic wave in vacuum is B0=510 nT. What is the amplitude of the electric field part of the wave?
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In an electromagnetic wave, the electric and magnetizing fields are 100 V m-1 and  0.265 A m-1. The maximum energy flow is
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A red LED emits light at 0.1 watt uniformly around it. The amplitude of the electric field of the light at a distance of 1 m from the diode is:

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A book can be read if it is placed at a distance of 50 cm from a source of 1 cd. At what distance should the book placed if the source is of 16 cd?
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The ratio of amplitude of magnetic field to the amplitude of electric field for an electromagnetic wave propagating in vacuum is equal to
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In an electromagnetic wave, the average energy density is