Solving a problem in physics section 18 point 22 optics

Solving a problem in physics section 18 point 22 optics

22. Jung experience was carried out in a clear liquid with a first monochromatic light of wavelength λ1 = 600 nm, and then - with the other light wavelength λ2. Determine a wavelength in a second case 7 th light bar in the first case coincides with the 10th dark stripe in the second case.

Additional information:

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)