Question

Measurement made in science lab must be as accurate as possible. Ravi measured the length of an iron rod and said it was 19.34 cm long; Kamal said 19.25 cm; and Tabish said 19.27 cm. The correct length was 19.33 cm. How much of error was made by each of the boys?

Answer 1

The correct length of the iron rod = 19.33 cm

The length of the rod measured by Ravi = 19.34 cm

∴ Error made by Ravi = (19.34 – 19.33)cm = +0.01 cm

The length of the rod measured by Kamal = 19.25 cm

∴ Error made by Kamal = (19.25 – 19.33) cm = -0.08 cm

The length of the rod measured by Tabish = 19.27 cm

∴ Error made by Tabish = (19.27 – 19.33) cm = -0.06 cm.

Comments

THANK YOU