1no one trying out these 2?
1> if y represents mass and x represents velocity then dimensional formula for d3y/dx3 will be?
2> in the eqn y=Asin(ax+bt),if x and y are in meter,t is in second,hen unit of 'a' is 1 /meter
true or false?
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6 Answers
1solved 1
statement1: least count represents the permissible error in the measurement
statement 2: the smallest measurement that can be made with the help of a measuring instrument is called the least count
66For 2) you should note that the argument of sin must be dimensionless. That means ax must be dimensionless, so a must be reciprocal of length. So the given statement is true.
1sir even i answered the 2nd one as true but the answer given was false
as mentioned have solved the first one
for the third according to me the answer should be:(a)
but the answer given is:b