Lights of wavelengths λ1=4500Å, λ2=6000Å are sent through a double slit arrangement simultaneously. Then Lights of wavelengths λ1=4500Å λ2=6000Å are sent through a double slit arrangement simultaneously. Then November 17, 2020 Category: Cengage NEET by C.P Singh , Chapter 16 - Wave Motion and Waves on a String , Part 1 ,