00656nam a2200205 a 450000500170000002000150001708200210003210000170005324500270007025000130009726000320011030000230014269000230016596400190018899700280020799900170023595200660025295200660031895200660038420251203091830.0  a8121906166  a530.078,bD, Har  aHarnam Singh  aB.Sc Practical physics  arev. ed.  aDelhibS. Chand & co.c1994  axvi, 498p.c23 cm.  aPhysics, Practical  bengcdefg_  a83836 W 83837 W 83838 W  c54308d54308  02104070aPUbPUd1998-04-08l0o530.078, D, Harp83836yBK  02104070aPUbPUd1998-07-22l0o530.078, D, Harp83837yBK  02104070aPUbPUd1998-07-22l0o530.078, D, Harp83838yBK