{"name":"Which of the following pairs of units are both SI base units?", "url":"https://www.quiz-maker.com/QPREVIEW","txt":"Which of the following pairs of units are both SI base units?, The diagram shows two vectors X and Y.In which vector triangle does the vector Z show the magnitude and direction of vector X – Y?","img":"https://cdn.poll-maker.com/30-1051822/1.png?sz=1200-00000000001001803453"}