JAMB - Physics (2003 - No. 3)
The length of piece of glass block was measured by means of a vernier calliper as shown above. The length of the glass block is
1.63 cm
1.64 cm
1.65 cm
1. 66 cm
解释
The length of the glass block = The main scale reading of the vernier calliper + the vernier scale reading
= 1.6 + 0.04 = 1.64cm.