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Chapter 33: Q9P (page 1001)
Some neodymium鈥揼lass lasers can provideof power inpulses at a wavelength of. How much energy is contained in a single pulse?
Energy contained in a single pulse is .
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A laser beam of intensity I reflects from a flat, totally reflecting surface of area A, with a normal at angle with the beam.Write an expression for the beam鈥檚 radiationpressureonthe surface in terms of the beam鈥檚 pressurewhen.
Question: In Fig. 33-62, a light ray in air is incident at angle on a block of transparent plastic with an index of refraction of. The dimensions indicated are and. The light passes through the block to one of its sides and there undergoes reflection (inside the block) and possibly refraction (out into the air). This is the point offirst reflection. The reflected light then passes through the block to another of its sides 鈥� a point ofsecond reflection. If , on which side is the point of (a) first reflection and (b) second reflection? If there is refraction at the point of (c) first reflection, and (d) second reflection, give the angle of refraction; if not, answer 鈥渘one鈥�. If , on which side is the point of (e) first reflection and (f) second reflection? If there is refraction at the point of (g) first reflection, and (h) second reflection, give the angle of refraction; if not, answer 鈥渘one鈥�.
In Fig. 33-76, unpolarized light is sent into a system of three polarizing sheets with polarizing directions at angles, , and.What fraction of the initial light intensity emerges from the system?
One want to rotate the direction of polarization of a beam of polarized light throughby sending the beam through one or more polarizing sheets.
(a) What is the minimum number of sheets required?
(b) What is the minimum number of sheets required if the transmitted intensity is to be more thanof the original intensity?
In Fig. 33-29, unpolarized light is sent into a system of five polarizing sheets. Their polarizing directions, measured counterclockwise from the positive direction of the y axis, are the following: sheet 1,; sheet 2, ; sheet 3,; sheet 4,; sheet 5,. Sheet 3 is then rotated,counterclockwise about the light ray. During that rotation, at what angles (measured counterclockwise from the y axis) is the transmission of light through the system eliminated?
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