Question

the mass of cube is uncertain by 2% and its length is uncertain by 1% what will be maximum percentage error in density ​

Answer 1

Answer:

5%

Explanation:

D = M/V

V of a cube = L^3

D = M/L^3

∆D/D ×100 = [∆M/M×100] + 3[∆L/L×100]

∆D/D ×100 = 2% + 3×1% = 5%

Note:

power of a quantity is multiplied in relative error