A laser emits a cylindrical beam of light 28mm in
A laser emits a cylindrical beam of light 2.8mm in diameter.If the average power of the laser is 2.6mW , what is the rms value of the electric field in the laser beam?E-rms=________kv/m
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in radiofrequency rf ablation a small needle is inserted into a cancerous tumor when radiofrequency oscillating
a television is tuned to a station broadcasting at a frequency of 700times107hz for best reception the rabbit-ear
what is the maximum value of the electric field in an electromagnetic wave whose average intensity is 375wm2
a 73kw radio station broadcasts its signal uniformly in all directionspart awhat is the average intensity of its signal
a laser emits a cylindrical beam of light 28mm in diameterif the average power of the laser is 26mw what is the rms
a small magnet of length 71 cm is placed at an angle of 80 degree to the direction of uniform magnetic field of
a straight stiff horizontal wire of length 30 cm and mass 60 g is connected to a source of emf by light flexible leads
1 the fact that some airplanes collide is evidence that there is too little air traffic control evaluate2 nbspa prime
a gas at a temperature of 382 k a pressure of 197 kpa and occupying a fixed volume of 038 m3 is heated so that the
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