While measuring the length of a knitting needle, the reading of the scale at one end is 3.0 cm and at the other end is 33.1 cm. What is the length of the needle?

The length of one side of a rhombus is 13 cm and one of the diagonals is 10 cm. What is the length of the other diagonal?

Least count of a vernier calliper is 0.01 cm. While measuring the length of any object, the reading of main scale is 2.7 cm and 5th mark of vernier is in line with any mark of main scale. What is the length of that object?

The length of a pipe closed at one end is 33 cm and the speed of sound in air is 330 m/s. What is the frequency of the third overtone produced by the pipe ?

The perimeter of a rhombus is 20 cm. The length of one of its diagonal is 6 cm. What is the length of the other diagonal ?

While measuring the length of a copper rod using a vernier calliper, the zero of the vernier scale ws found to be between 4.6 cm and 4.7 cm on the main scale. The 6th division of the vernier scale is found to coincide with a division on the main scale. Find the length of the rod if the least count is 0.01 cm.