Angular separation between the two lines
A grating with 504 lines/mm is illuminated with light of wavelength 305 nm. What is the angular separation between the two lines formed in order m = 2?
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a hobbyist building a radio needs a 150 ohm resistor in her circuit, but only has a 220 ohm, a 79 ohm, and a 92 ohm, resistor available. How can she connect these resistors to produce the desired resistance?
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