000 00495nam a2200193 a 4500
005 20260717091238.0
008 260717s1987 ii 000 0 eng d
020 _a8121900204
041 _aeng
082 0 4 _a535
100 1 _aSingh, Harnam
245 1 0 _aPrincipal of Light /
_cSingh, Harnam
250 _a3rd ed.
264 1 _aNew Delhi :
_bS.Chand & Company Pvt Ltd,
_c1987.
300 _aill.470p. : ill ; 21cm.
500 _aIncludes index.
650 4 _aPhysics -light
942 _cBK
999 _c27497
_d27497