The side of a cube is measured by vernier callipers (`10` divisions of a vernier scale coincide with `9` divisions of main scale, where `1` division of main scale is `1mm`). The main scale reads `10mm` and first division of vernier scale coincides with the main scale. Mass of the cube is `2.736 g`. find the density of the cube in appropriate significant figures.

Options

A. `1.33 gm//cm^(3)`
B. `0.66 gm//cm^(3)`
C. `2.66 gm//cm^(3)`
D. `4.88 gm//cm^(3)`

Answer

C

Explanation

More is number of oscillations less will be error in meaurement of time.