2.83 cms−1 \mathrm {2.83 ~ cms^{-1}}2.83 cms−1
6.34 cms−1 \mathrm {6.34 ~ cms^{-1}}6.34 cms−1
5.8 cms−1 \mathrm {5.8 ~ cms^{-1}}5.8 cms−1
কোনটিই নয়
