Liquid Drop model First proposed by N-Bohr $ F. Kalckar in 1937. Later applied by CF Van weizsacker and H.A Bethe to develop Bethe Weizsacker Semi emperical formula for Binding energy ($ Mass) of the nucleus Emperical Experimentally observed seme used assumption, approximation to Simplifier calculation.
arities vucleus liquid drop ucleon Molecules lear force surface tension force of liquid. nsity Const. Density constant dependent of A) (independent of size) stant B.E Latent heat of i nyeleon vaporization. of nucleons Internal thermal vibrations of molecules erences clear (microscopic) Liquid drop (macroscopic) tum character (classical character) age K.E of Average K.E of cons 15 MeV molecules ev