Chapter 1, Conceptual questions, Measurements, Physics class 11, kpk textbook

Conceptual Questions of Chapter 01 , Measurements , Physics Class 11 explained in easy way.These questions are explained according to new Syllabus of kpk board and Federal Board. 1)For an answer to be complete, the units need to be specified. Why? 2) What are the advantages of using international system of units? 3(a) How many radians account for the circumference of a circle? (b) How many steradian account for the circumference (area) of a sphere? 4)What is least count error? How can least count error be reduced? 5)Why including more digits in answer, does not make it more accurate? 6)What determines the precision of a measurement? 7)If two quantities have different dimensions, is it possible to multiply and/or divide? Can we add or subtract them? 8)The human pulse and the swing of a pendulum are possible time units. Why are they not often used? 9) If an equation is dimensionally correct, is that equation a right equation?