The instrument "Metalic tap" is generally used for length measurement in India
scale or ruler is an instrument used for measuring length
usually a ruler is used for measurement of length! Sabrina L. wrote this and i rule YEAHHHHH
a dendrometer is used to measure trees.
there are many instruments used to measure length depending upon the size of object , Ruler is Metric instrument used to measure length. Screw gauge is also used as an instrument used to measure length in mm.
Pyrometer
True
which instruments used for the measurement of heat
Spectrometer
When are air velocity measurement used
A stream gauge is the instrument which is commonly used for the measurement of velocity stream.
Kilometers