Question #348660

Light is incident on a diffraction grating that has 300 lines /mm. A diffraction pattern is observed. The angle between the central maximum and second order maximum was measured to be 250 . Calculate the wavelength of the light.

1
Expert's answer
2022-06-07T08:11:55-0400

dsinφ=kλ,d\sin\varphi=k\lambda,

λ=dsinφk=704.4 nm.\lambda=\frac{d\sin\varphi}k=704.4~nm.


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