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A linearly polarized plane wave of wavelength lembda, is travelling in air and ia incident normally on a plane sheet of glass. Show that the ratio of the reflected to the incident electric field amplitude is (n(glass)-n(air))/(n(glass)+n(air)) where n(air) and n(glass) are the refractive indices of air and glass respectively.
The glass sheet is now coated on the incident side with a material with a refractive index n(coat) = √((n(air)*n(glass))) and a thickness d = λ/4. Prove that there is now, in principle, no reflected power.
Two astronauts on opposite ends of a space ship are comparing lunches. One has an apple, the other has an orange. What is the final speed and direction of the apple in this case
A beam of laser light (? = 741 nm) hits a black wall and is fully absorbed. what is the total force exerted by the photons on the wall
What is the average power in watts he expends climbing the hill - find the gravitational potential energy of the box relative to the floor.
A bat flying at 5.60 m/s is chasing aninsect flying in the same direction. If the bat emits a 40.0-kHzchirp and receives back an echo at 40.4 kHz, what is the speed ofthe insect
a "wien" velocity filter uses an electric field and a magnetic field that are at right angles to each other. what is the energy of the proton beam
What is the magnitude of the electric field at the third vertex of the triangle?
How long does it take for the last car to come to rest. When catching a baseball, a catcher's glove moves by 11 cm along the line of motion of the ball. If the baseball exerts a force of 403 N on the glove, how much work is done by the ball.
if you had a small diameter spring and made pulses, then got a different diameter spring, with the same tension and same length of the spring, What are two ways to affect the speed of a wave
A hoop and a disk, both of 0.72- m radius and 4.0- kg mass, are released from the top of an inclined plane 2.5 m high and 8.9 m long. What is the speed of the hoop
A 120 gcube of ice at 0°C is dropped into 1.0 kg of water that wasoriginally at 86°C. What is the final temperature of the water after the ice has melted
A 67.0 kg diver is 2.30 m above the water, falling at speed of 6.70 m/s. Calculate her kinetic energy as she hits the water
As you stand near a railroad track, a train passes by at a speed of 30.9 m/s while sounding its horn at a frequency of 215 Hz. What frequency do you hear as the train approaches you
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