The least count will be the same unit of the magnitude of one division. So correspondingly we can alter the unit of least count into the required unit. Least count of metre scale can be written as,
[0.1cm]
or [1mm] according to our requirement.
What is the least count of metre scale in centimeters?
The least count of a metre scale is
1 mm or 0.1 cm
.
How do you find the least count of a scale?
Least count of a Vernier scale is calculated using the following formula,
Least count = Smallest reading on main scaleNumber of divisions on Vernier scale=1mm10
= This is the least count for Vernier Callipers. Hence, the least count for Vernier Callipers is 0.1mm.
What is least count of simple scale?
Units and Measurement
What is the least count of simple scale?
0.001m or 0.1 cm
is the least count of a simple scale.
What is the least count of a ruler?
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
.
What is the least count of 15 cm scale?
2)
1cm
.
What is the least count of 30 cm scale?
The length of an object was measured to be 30 cm by a linear scale of least count
0.1 cm
.
What is the least count of half metre scale?
0 · 1 m m
.
What is a metre scale?
The meter scale is
the apparatus for measurement of the length of any object
. Example: The length of the square is 5 meters. Here, 5 is the magnitude of the length and meter is the unit of length. 1 meter of the meter scale is divided into 100 centimeters. Meter scale is used to measure Length.
What is the least count of normal scale?
The least count error is the error associated with the resolution of the instrument. If we use a metre scale formeasurement of length, it may have graduations at 1 mm division scale spacing or interval. A Vernier scale on caliper may have a least count of
0.01 mm
while a micrometer may have a least count of 0.001 mm.
What is the least count of your wrist watch?
The least count of an instrument is the smallest measurement that can be taken accurately with it. The least count of a stop watch is generally
1 s
.
What is the least count of protractor?
A simple protractor is a basic device used for measuring angles with a least count of
1° or 1⁄2°
. Bevel Protractor is an angular measuring instrument capable of measuring angles with a least count of 5′. The protractor dial is graduated in degrees with every tenth degree numbered.
What is LC of vernier caliper?
The LC of vernier calliper is
the difference between one smallest main scale reading and one smallest vernier
scale reading of 0.1 mm 0r 0.01 cm. … The Least Count measuring instrument is determined mathematically by calculating the main scale reading by the cumulative number of divisions on the main scale.
What is a zero error?
zero error
Any indication that a measuring system gives a false reading when the true value of a measured quantity is zero
, eg the needle on an ammeter failing to return to zero when no current flows. A zero error may result in a systematic uncertainty.
What is the smallest increment on a ruler?
The ruler is incremented in units of centimeters (cm). The smallest scale division is
a tenth of a centimeter or 1 mm
. Therefore, the uncertainty Δx = smallest increment/2 = 1mm/2 = 0.5mm = 0.05cm.
Which instrument is more precise?
Screw gauge
has minimum least count of 0.001cm. Hence, it is most precise instrument.
