The sodium yellow doubled has wavelength 5890 Å and `lamda` Å`(lamda gt gt 5890"Å")`
Channel: Doubtnut
Date: 2020-05-24

The sodium yellow doubled has wavelength 5890 Å and `lamda` Å`(lamda gt gt 5890"Å")` and resolving power of a grating to resolve these lines is 982, then value of `lamda` is