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question_answer1) Find the intensity of visible radiation at a distance of 1 m from a bulb of \[100\text{ }W\] which converts only 5% its power (in\[W/{{m}^{2}}\]) into light.
question_answer2) On an E M wave, the amplitude of electric and magnetic fields are 100 v/m and 0.265 A/m. the maximum energy (in \[W/{{m}^{2}}\]) flow is?
question_answer3) Consider an electric charge oscillating with a frequency of 10 MHz. The radiation emitted will have a wavelength (in m) equal to?
question_answer4) A lamp emits monochromatic green light uniformly in all directions. The lamp is 3% efficient in converting electrical power to electromagnetic waves and consumes\[100\text{ }W\] of power. The amplitude of electric field (in V/m) associated with the electromagnetic radiation at a distance of 5 m from the lamp will be?
question_answer5) A capacitor is having a capacity of\[2pF\]. Electric field across the capacitor is changing with a value of\[{{10}^{12}}V/s\]. The displacement current (in Amp) is?
question_answer6) A plane electromagnetic wave of frequency \[40\text{ }MHz\]travels in free space in the x-direction. At some point and at some instant, the electric field \[\vec{E}\]has its maximum value of\[750\text{ }N/C\]in y-direction. The wavelength (in m) of the wave is?
question_answer7) A flood light is covered with a filter that transmits red light. The electric field of the emerging beam is represented by a sinusoidal plane wave\[{{E}_{x}}=36\sin (1.20\times {{10}^{7}}z-3.6\times {{10}^{15}}t)V/m\]. Find the average intensity (in\[W/{{m}^{2}}\]) of the beam.
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