Question

The true length of an object is 7.6 cm. It is measured by A as 7.8 cm and measured by B as 7.85 cm. Then compared to the measurement of A, the measurement of B has

Answer 1

Answer:

0.05 cm error

Explanation:

This question is based on relative measurement

In relative measurement, we have one standard measurement or reference measurement. Then all other measurements are compared with the reference and then an answer is made.

In given case, although the measurement of A is not correct but if take it as reference, then B is given 0.05 cm error, as according to A it should be 7.8 but B reads it as 7.85 cm