In which year SI system of units was developed and recommended by General Conference on Weights and Measures?
Which one of the following physical quantities is not a fundamental quantity?
Which of the following physical quantities has same unit in all the three system of units?
Which of the following units is not a base unit?
Which of the following system of units is not based on unit of mass, length and time?
In International System of units, there are seven base quantities whose units are defined. Which physical quantity has a prefix with its unit?
Which one of the following statements is incorrect?
Which one of the following instruments is not used for the measurement of length?
What is the volume occupied by one mole of an ideal gas at STP?
Light year is the unit of
Which of the following is the smallest unit?
Which of the following is unitless quantity?
Which of the following is the most precise device for measuring length?
Fathom is the unit to measure the
Which of the following is not unit of earth?
The device used for measuring the mass of atoms and molecules is
Which of the following is the most precise instrument for measuring length?
Which of the following statements is incorrect regarding significant figures?
In an experiment, the period of oscillation of a simple pendulum was observed to be 2.63 s, 2.56 s, 2.42 s, 2.71 s and 2.80 s. The mean absolute error is
Which of the following physical quantities has a unit but no dimensions?
Which of the following physical quantities has neither units nor dimensions?
