Question

Relative density of a metal may be found with the help of spring balance. In air the spring balance reads (5.00 ± 0.05) N and in water it reads (4.00 ± 0.05) N. Relative density would be(a) (5.00 ± 0.05)N(b) (5.00 ± 11%)(c) (5.00 ± 0.10)(d) (5.00 ± 6%)

Answer 1

density, d=Weight in airLoss of weight in water=55-4=5Now error,∆dd=0.11=11100=11%Thus, the relative density is(5.00±11%)

Answer 2

Answer:5.00+-11%

Explanation: with the help of relative density formula which is equal to weight in air upon loss of weight is water