The wavelength of a spectral line of cesium is 460nm. Calculate the frequency of the line. Share with your friends Share 7 Akanksha Jain answered this Use the formula c = νλwhere c = speed of light = 3×108 m/sν = frequency of lightλ= wavelength = 460 nm = 460 ×10-9 mSo, ν=cλ =3×108m/s460 ×10-9 m =6.52×1014 s-1 19 View Full Answer Aryan Gupta answered this c=wavelength×frequncy i.e. 3×10^8=460×10^-9 ×f f= 6.52×10^14 -1