Question

Mass of a cube is 2 gram with error of 0.2 gram and the volume of 1cm cube with the error of 0.1 cm cube find percentage error in density ?​

Answer 1

Answer:

∆M/m=0.2 and ∆V/v=1. so density= mass/volume= 0.1×1= 0.1

Answer 2

Answer:

2%

Explanation:

m=20.00g

v=5.0cm

2

d=

v

m

⇒

d

Δd

×100=

m

Δm

×100+

v

Δv

×100

⇒

d

Δd

×100=

20

0.01

×100+

5

0.1

×100=

20

1

+2

⇒

d

Δd

×100=2.005

∴% error in density ≈2%