Least count of a metre scale
The smallest division of a metre scale is 1 mm, so the least count is 0.1 cm.
Least count
Least count. The smallest value an instrument can read. It is the smallest error you can make in one reading. Least count = the smallest division on the scale.
Least count
0.1cm
0.1 cm
Least count = the smallest division on the scale.
Least count = the smallest division on the scale
A metre scale is used for lengths up to a metre. The working for the textbook numbers is 0.1 cm.
Other instruments
Metre scale: quick answers
What is the least count of a metre scale?
The smallest division of a metre scale is 1 mm, so the least count is 0.1 cm. Least count = the smallest division on the scale.
How do I find the least count of my metre scale?
Least count = the smallest division on the scale. For the instrument in front of you, read the scale and use your own numbers in the tool above.
Why does the least count matter?
The least count is the smallest reading you can make, so it sets the smallest error in a single measurement. Metre scale measures lengths up to a metre.