The light shining on a diffraction grating has a wavelength
The light shining on a diffraction grating has a wavelength of 490 nm (in vacuum). The grating produces a second-order bright fringe whose position is defined by an angle of 9.85°. How many lines per centimeter does the grating have?
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three and only three bright fringes can be seen on either side of the central maximum when a grating is illuminated
the light shining on a diffraction grating has a wavelength of 490 nm in vacuum the grating produces a second-order
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