Wavelength of red helium-neon laser light
The wavelength of red helium-neon laser light in air is 632.8 nm.
(a) What is its frequency?
(b) What is its wavelength in glass that has an index of refraction of 1.51?
(c) What is its speed in the glass?
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The index of refraction for red light in water is 1.331 and that for blue light is 1.340. A ray of white light enters the water at an angle of incidence of 60.8°
Light of wavelength 700 nm is incident on the face of a fused quartz prism (n = 1.458 at 700 nm) at an incidence angle of 78.0°. The apex angle of the prism is 60.0°. (a) Calculate the angle of refraction at the first surface.
The wavelength of red helium-neon laser light in air is 632.8 nm. (a) What is its frequency?
Determine the force in members CD and Gf of the truss and state if the members are in tension or compresson. Also indicate all zero force members.
A heat engine (power cycle) is operating on a Carnot cycle and has a thermal efficiency of 75%. The waste heat from this engine is rejected to a nearby lake at 15oC at a rate of 14 kW. Determine the power output of the engine?
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