00290nam a2200133Ia 4500020001800000082001400018100002200032245002600054250001300080260003000093300000900123650001100132700001300143  a9788121926119  a535 SUB/T  aSubrahmanyam, N.  2aA Text Book of Optics  a2ND ED.   bS. ChandaNew Delhic2014  a729p  aOptics  aBrij Lal