00334nam a2200133Ia 4500003000400000005001700004008004100021040000900062082001500071100002200086245004800108260003500156300000900191OSt20200918105001.0190216s9999||||xx |||||||||||||| ||und||  coclc  a530bGOP/I  aGopalakrishnan, V 0aIntroduction To Physics /cV Gopalakrishnan  bPulikattil  Publishing  House,  a415p