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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A flood light will be covered with filter that transmits red light. The electric field of the emerging beam is represented by a sinusoidal plane wave Ex = 38.8 sin( 1.2 × 10^7 z− 3.6 × 10^15 t ) V/m. The average intensity of beam in watt/m^2 will be:

A flood light will be covered with filter that transmits red light. The electric field of the emerging beam is represented by a sinusoidal plane wave Ex = 38.8 sin( 1.2 × 10^7 z− 3.6 × 10^15 t ) V/m. The average intensity of beam in watt/m^2 will be:

In a plane electromagnetic wave the electric field oscillates sinusoidally at a frequency of 2.5 x 10^10 Hz and amplitude 480 V/m. The amplitude of the oscillating magnetic field will be