Calculate `lambda` of X-rays which give a diffraction angle `2 theta = 16.8^(@)`
Channel: Doubtnut
Date: 12/07/2020

Calculate `lambda` of X-rays which give a diffraction angle `2 theta = 16.8^(@)` for crystal, if the interplanar distance in the crystal is `0.2 nm` and that only for the first-order diffraction is observed. Given `sin 8.40^(@) = 0.146`.