The length of a block was measured to be 11.23 cm ± 0.03 cm the vernier caliper used to measure the block has an uncertainty of 0.01 cm. Determine the total uncertainty in the measurement.

A) 0.04 cm

B) 0.032 cm

C) 0.001 cm

D) 0.2 cm

option B

Explanation:

Given.

length of block measured = 11.23 cm ± 0.03 cm

vernier caliper is used to measure with uncertainty of 0.01 cm

total uncertainty = ?

The Vernier Caliper is an instrument which is used to measure the distance, diameter of the coin or many more things accurately

Accuracy of vernier caliper is equal to 0.001 of an inch.

when you convert 0.001 of an inch you will get

1 inch = 25.4 mm

0.001 inch = 0.0254 mm

or 0.002 cm

hence, total uncertainty in the measurement = 0.03 + 0.002 = 0.032 cm

the correct answer is option B