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March 26, 2017

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pleaase help me with this,
i'm very bad in physics, and i mostly don't understand any of this stuff...can anyone explain as well as show me how to do this

Monochromatic light from a helium-neon laser (wavelength=632.8 nm) shines at a right angle onto the surface of a diffraction grating that contains 130 960 lines/m. Find the angle at which one would observe the first-order maximum

Thank you VERY much! =]

  • physics - ,

    I know this is in your text. Are you studying your text, going through the examples? From your questions, I get the impression your are not, just looking for formulas to plug and compute. Physics is much more gedunken that that.

    d * sinTheta= m * lambda

    where d is line spacing (1/130860), m is the order (m-1 here).

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