The sum of the numbers 436.32, 227.2 and 0.301 in appropriate significant figures is
663.821
664
663.8
663.82
The mass and volume of a body are 4.237 g and 2.5 cm3, respectively. The density of the material of the body in correct significant figures is
1.6048 g cm-3
1.69 g cm-3
1.7 g cm-3
1.695 g cm-3
The numbers 2.745 and 2.735 on rounding off to 3 significant figures will give
2.75 and 2.74
2.74 and 2.73
2.75 and 2.73
2.74 and 2.74
The length and breadth of a rectangular sheet are 16.2 cm and 10.1 cm, respectively. The area of the sheet in appropriate significant figures and error is
164 ± 3 cm2
163.62 ± 2.6 cm2
163.6 ± 2.6 cm2
163.62 ± 3 cm2
Which of the following pairs of physical quantities does not have same dimensional formula?
Work and torque
Angular momentum and Planck's constant
Tension and surface tension
Impulse and linear momentum