(II) White light passes through a 610-line/mm
Chapter , Problem 43(choose chapter or problem)
(II) White light passes through a 610-line/mm diffractiongrating. First-order and second-order visible spectra (rainbows)appear on the wall 32 cm away as shown in Fig. 35-47.Determine the widths ^ and l2 of the two rainbows(400 nm to 700 nm). In which order is the rainbow dispersedover a larger distance?
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