Question

solve this... its easy but i am getting the wrong answr.....i just want you to solve and get it check whether options are incorrect or I'm wrong....... plzz...........
[ ans. = b) ....but according to me it is MT-²]

Answer 1

Because a is in a fundamental operation with Time^2 , thus dimensions of a will also be Time^2

Now,

Dimension of pressure = ML^-1T^-2

So,

bx = M^-1 L^1 T^4

So,

Because x is the distance that is corresponding to length

Dimensions of b become M^-1 T^4

So,

a/b = T^2/M^-1T^4 = [ MT^-2]

And, so you're right the options are incorrect !