Alaser with a wavelength of 532 nm is aimed horizontally at a diffraction grating with 580 grooves per mm in a large, dark room. the grooves are oriented vertically. the laser is 2.7 m away from the diffraction grating, while a flat, white wall is 3.9 m behind the diffraction grating. describe what appears on the wall and where.
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Physics, 21.06.2019 14:40
Astring that is fixed at both ends has a length of 1.05 m. when the string vibrates at a frequency of 91.0 hz, a standing wave with five loops is formed. (a) what is the wavelength of the waves that travel on the string? (b) what is the speed of the waves? (c) what is the fundamental frequency of the string?
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In science and physics what is the standard unit of measure for speed?
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