Question
Question: The mass of a beaker is found to be (10.1 ± 0.1) gm when empty and (17.3 ± 0.1)gm when partially fil...
The mass of a beaker is found to be (10.1 ± 0.1) gm when empty and (17.3 ± 0.1)gm when partially filled with a liquid. What is the best value of the mass of the liquid together with the possible limits of accuracy?
A
(7.2 ± 0.2) gm
B
(7.2 ± 0.1) gm
C
(7.1 ± 0.2) gm
D
(7.2 ± 0.3) gm
Answer
(7.2 ± 0.2) gm
Explanation
Solution
Mass of liquid = mass of beaker filled with liquid-mass of empty beaker.
= (17.3 − 10.1) gm = 7.2 gm
With a maximum possible error of 0.1 + 0.1 = 0.2
=(7.2 ± 0.2)gm
Hence (1) is correct.