A beam containing light of wavelengths 1 and 2 is incident on a set of parallel slits In the interference pattern, the fourth bright line of the 1 light occurs at the same position as the fifth bright line of the 2 light If 1 is known to be 540 nm, what is the value of 2 ...

Bright lines occur at angles given by s ...

A beam containing light of wavelengths 1 and 2 is incident on a set of parallel slits.

Question:

A beam containing light of wavelengths λ1 and λ2 is incident on a set of parallel slits. In the interference pattern, the fourth bright line of the λ1 light occurs at the same position as the fifth bright line of the λ2 light. If λ1 is known to be 540 nm, what is the value of λ2?