1.

What is the dimensional formula for pressure gradient?A. `[M^(1)L^(2)T^(-1)]`B. `[M L^(-2)T^(-2)]`C. `[M^(-2)L^(-2)T^(0)]`D. `[M^(0)L^(2)T^(-2)]`

Answer» Correct Answer - b
Pressure gradient
`=("Difference in pressure")/("Distance between the two points")=(dP)/(dx)`
`therefore ["Pressure gradient"]=[(dP)/(dx)]=[(F//A)/(L)]=[(M^(1)L^(1)T^(-2))/(L^(2)xxL)]`
`=[M^(1)L^(-2)T^(-2)]`


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