Least count of meter scale

Table of Contents • • • • • • What is the least count of meter scale? Least count of a measuring instrument is the smallest measurement that can be made accurately with the given measuring instrument. A metre scale normally has graduations at 1 mm (or 0.1 cm) spacing, as the smallest division on its scale. What is least count of meter rule? The least count error is the error associated with the resolution of the instrument. A metre ruler may have graduations at 1 mm division scale spacing or interval. A Vernier scale on a caliper may have a least count of 0.1 mm while a micrometer may have a least count of 0.01 mm. How is a meter calculated? The metre is currently defined as the length of the path travelled by light in a vacuum in of a second. The metre was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole along a great circle, so the Earth’s circumference is approximately 40000 km. How is 1 Metre defined? Since 1983, the metre has been internationally defined as the length of the path travelled by light in vacuum during a time interval of 1/of a second. By using a light source of known and stable wavelength, lengths up to 100 metres can be directly measured, with accuracies up to 1 part in a few million. What is the use of Metre? Meter is a literary device that works as a structural element in poetry. Essentially, meter is the basic rhythmic structure of a line within a poem or poetic work. Meter functions as a means of imp...

• The smallest value that can be measured by the measuring instrument is called its least count. • The least count can also be referred to as the error associated with the resolution of the instrument. • To calculate the least count we use the formula given below • Least count = Magnitude of a division Number of division to reach that magnitude • In the case of a meter scale let us consider the magnitude 1cm. The number of divisions that have taken to reach is 10. • So, least count can be calculated as per the formula as 1 cm 10 = 0.1cm or 1mm Hence, least count of meter scale is 0.1 cm or 1 mm.

The length of two rods measured by a meter scale are $60.0 \\mathrm$ respectively. The least count of meter scale is 1 mm. ThenThis question has multiple correct options(A) First measurement is more accurate(B) Second measurement is more accurate(C) Both measurements are equally accurate(D) First measurement is more is more precise The length of two rods measured by a meter scale are $60.0 \mathrm$ respectively. The least count of meter scale is 1 mm. Then This question has multiple correct options (A) First measurement is more accurate (B) Second measurement is more accurate (C) Both measurements are equally accurate (D) First measurement is more is more precise Hint: We should know that the smallest value that can be measured by the measuring instrument is called its least count. Measured values are good only up to this value. The least count error is the error associated with the resolution of the instrument. A metre ruler may have graduations at 1 mm division scale spacing or interval. The Vernier calliper least count formula is calculated by dividing the smallest reading of the main scale with the total number of divisions of the vernier scale. Least Count of vernier calliper is the difference between one smallest reading of the main scale and one smallest reading of vernier scale which is 0.1 mm 0r 0.01 cm. Based on this concept we have to answer this question. Complete step by step answer: Given scale is a meter scale, that means it has a count of $1000 \mathrm$. Th...