1. EXPERIMENT ON MEASEUREMENT OF
LEAD JOB ON VERNIER CALIPER, AND
ALSO CALCULATION OF ITS WEIGHT
JOB TYPE: ……………………………………………………………….. CYLINDRICAL FIGURE(A)
VERNIERCALIPERLEAST ACOUNT: …………………………. 0.05mm
DIAMETER COMPLETE READING ON MAIN SCALE:.. 19mm=1.9cm
POINTREADINGOF VERNIERSCALE: ………………………. (6 READING OFVERNIER) 0.05 × 6= 0.3mm=0.03cm
FIGURE(D)
TOTAL DIAMETER: …………………………………………………… 1.9 + 0.03= 1.93cm
HEIGHT OF JOB:………………………………………………………. 26mm=2.6cm
DENSITY OFLEAD: …………………………………………………… 11.34 g/cm3
CACULATION:
WEIGHT OF JOB:…………………………………………………… DENSITY × VOLUME
VOLUME OFCYLINDRICALSHAPE JOB:…………………. πD2
/4 × HEIGHT = 3.1416(1.93)2
/4 × 2.6=7.61cm3
WEIGHT OF JOB:………………………………………………….. 11.34 × 7.61=86.3g
(A=JOB) (B=VERNIERCALIPER)

2. (C=HOLDING JOBIN JAWS) (D=VERNIERSCALE)