Question

The density of a material in the shape of a
cube is determined by measuring three
sides of the cube and its mass. If the
relative errors in measuring the mass and
length are respectively 1.5% and 1%, the
maximum error in determining the density
is :
(1) 2.5%
(2) 3.5%
(3) 4.5%
(4) 6%

Answer 1

it is this time iit jee main question
density =m/vol=m/l cubed
so error in density =error in mass+3* error in length =1.5+3*1=1.5+3=4.5%
option 3 is the ans

Answer 2

Answer:

4.5

Explanation:

Density=row

delta row/delta*100 = delta m/m*100 + 3 delta a/a*100

delta row / row *100=1.5 percentage+3*1percent=

4.5 percent.