What is Least Count?
Least count is the smallest measurement that can be accurately read or measured by a measuring instrument. It represents the precision of the instrument.
Explanation:
- The least count is the minimum value that an instrument can measure.
- It determines how finely an instrument can measure.
- For example, if a ruler has markings every 1 millimeter, its least count is 1 mm.
- Instruments with smaller least counts provide more precise measurements.
Examples:
- Vernier Caliper: Typically has a least count of 0.01 mm.
- Micrometer Screw Gauge: Usually has a least count of 0.001 mm.
- Meter Scale: Least count is generally 1 mm.
Why is Least Count Important?
- It helps in understanding the accuracy and precision of measurements.
- Knowing the least count allows you to estimate the possible error in measurement.
If you want, I can also explain how to calculate the least count for specific instruments!
