procurement of equipments for physics laboratory of harasankar bhattacharya institute of technology and mining procurement of equipments for physics laboratory of harasankar bhattacharya institute of technology and mining , spherometer , glass apparatus for boyle’s law , copper ball , specific gravity bottle ( 50 cc ) , specific gravity bottle ( 25cc ) , mercury , convex lens ( f – 15 ) , convex lens ( f – 17 ) , resistance ( 2 ?, 3 ? , 5 ? ) , hydrostatic balance , p.o. box , apparatus for determination velocity of sound in air at ntp by resonance air column method , i.cregulated power supply ( 0-12v ) , simple pendulum , vernier callipers , screw gauge , apparatus for the determination of the young’s modulus of steel by searl’s method , apparatus for determination of the surface tension of water by capillary rise method , apparatus for drawing of the forward bias characrteristics curve ( i-v curve ) of a p-n junction diode. , apparatus for determination of force constant of a spring using hook’s law. , apparatus for co-efficient of linear expansion , iron ball , apparatus for  find the moment of inertia of a flywheel