Adaptive Practice
Units and Measurements
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Question 1 of 10
⏱ 0:30
Easy
What is the SI base unit of electric current?
Easy
Which of the following is a derived SI unit?
Medium
The dimensional formula of velocity is:
Medium
If the length, breadth, and height of a cuboid are measured with an accuracy of ±0.1 cm, what is the maximum percentage error in the volume measurement?
Medium
Which instrument is used to measure length with the highest precision among the following?
Easy
The fundamental physical quantity among the following is:
Hard
The dimensional formula of pressure is:
Hard
A physical quantity X has dimensions [M^1 L^2 T^{-3}]. Which of the following quantities can X represent?
Easy
Which of the following is NOT a base quantity in the SI system?
Hard
If the length of a wire is measured as 2.0 m with an uncertainty of ±0.01 m, and its diameter as 1.0 mm with an uncertainty of ±0.005 mm, what is the percentage error in the calculated volume of the wire (assuming it is a cylinder)?