000 00319nam a22001337a 4500
999 _c14835
_d14835
020 _a8126100524
082 _a535.2
100 _aRAJ,M.G
245 _aProblems in optics and sound
260 _aNew Delhi
_bAnmol publications pvt ltd
_c1998
300 _avii,215pg
_bill,graphy,21cm
650 _aphysics
942 _cBK