719PhysicsMedium
Three students measured the length of a needle with meter rod and recorded as : (i) 0.2145m (ii) 0.21m (iii) 0.214m Which one is a correct record ?
AOnly (ii)
BBoth (i) and (ii)
COnly (i)
DOnly (iii)
Correct answer
D. Only (iii)
Explanation
Only (iii) is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.