The radius of a capillary tube is a very important measurement and must be taken with extra caution due to the small size of the tube. A small error in the measurement can lead to significant errors in the calculations. The narrow diameter of the tube also means that the measurement is more prone to errors from vibration or air currents, making it more difficult to get an accurate reading.
In addition, the radius of the tube is also affected by the surface tension of the liquid it contains, which can cause the tube to deform or become curved. This can lead to incorrect measurements and must be taken into account when measuring the radius of a capillary tube.
Finally, measuring the radius of a capillary tube requires special tools and techniques. A micrometer or vernier caliper may be needed to accurately measure the radius, and special care must be taken to ensure that the measurement is taken in the middle of the tube. Additionally, the measurement should be taken multiple times to ensure accuracy as the tube may deform or change shape over time.
Vernier microscope radius of capillary tube
By measuring it....
The circumference of a circle with radius measuring 28cm is about 175.9cm (C = r x 2 x Pi).
One half the distance between nuclei.
By measuring their diameter
use a calculator
There is a specific formula for finding the radius of a curvature, used often when one is measuring a mirror. The formula is: Radius of curvature = R =2*focal length.
Radius because length, width and height are the three dimensional measuring references
r2 (r2) refers to the radius of the cylinder squared.
An error in measuring the radius (or diameter) of the cylinder has a greater effect on the accuracy of the volume calculation than an error in measuring the cylinder's length, since the volume is proportional to the square of the radius.
Liquid rises in and out of cappilarry to compansate pressure difference. Rise of a liquid in capillary is indirectly proportional to radius of tube so liquid goes higher in a narrow tube.
Area = Pi * (radius squared), and radius = 1/2 diameter, so A = Pi*(0.5d)^2