Задача 40685.

On the grating normally incident light beam By turning the tube at an angle f goniometer in sight line of 440 nm visible spectrum of the third order. They will be seen under the same angle other spectral lines corresponding to wavelengths within the visible spectrum (400 to 700 nm)?

Detailed solution shorthand terms, formulas and laws used in the decision, the withdrawal of the calculation formula and the response.
If you have any questions to address, please. I´ll try to help.