Задача 40708.

On a narrow slit normally incident plane monochromatic light wave (lambda = 628 nm). What is the width of the gap when the second diffraction peak is observed at an angle of 30 ° 1 ´?

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.