00297nam a22001097a 450000500170000000800410001702200140005824500370007225000250010926000450013430000080017920170630104250.0170630b        xxu||||| |||| 00| 0 eng d  a2249-3174  aInternational Journal of Physics  aVolume-7- Issue No 1  aDelhibResearch India Publication c2017  aP91