1>statement 1: least count represents the permissible error in measurement

statement 2: the smallest measurement that can be made with the help of a measuring instrument is called its least countin the equation

2>y=Asin(ax+bt),if x and y are in meter,t is in second,then unit of a is 1/meter(true/false)

givenanswers: 2 and false

my answers: 1 and true