What is the principle of Vernier Calipers?

Answer:

• A Vernier caliper is a scientific piece of equipment that has a major role in measuring particular objects’ internal and external diameters. 
• It is also used to measure the depth of objects or a specific part of it which is very difficult to measure with any other scale. 
• It has been designed in such a way that it can measure smaller values of minimal numbers.
• The Vernier caliper works on the principle of the alignment of certain numeral lines, giving an accurate reading of the measurement. 
• The vernier calipers have two scales that coincide according to the size of the object, which is placed between two holders of the instrument. 
• After taking the proper reading, the final measurement produced is very accurate.