so, dimensionally,
pressure ≠ energy per unit area
. option (A) is incorrect. so, dimensionally, pressure = energy per unit volume.
What is the dimensionally wrong equation?
A dimensionally correct equations need not be necessarily correct physical relation. A dimensionally wrong equation
is not correct mathematically too
.
Which of the following relation is dimensionally wrong?
u=v−at , u is initial velocity, v is final velocity, a is acceleration and t is time. ⇒
LT−1=LT−1−
(LT−1) . Hence it is dimensionally correct.
Which is dimensionally correct formula?
t=S+av
.
Which physical relations are dimensionally correct?
To check the correctness of physical equation,
v = u + at
, Where ‘u’ is the initial velocity, ‘v’ is the final velocity, ‘a’ is the acceleration and ‘t’ is the time in which the change occurs. From (1) and (2) we have [L.H.S.] = [R.H.S.] Hence by principle of homogeneity the given equation is dimensionally correct.
What is dimensionally correct?
Dimensionally Correct
In an algebraic expression,
all terms which are added or subtracted must have the same dimensions
. This implies that each term on the left-hand side of an equation must have the same dimensions as each term on the right-hand side.
What is MKSQ system?
From Wikipedia, the free encyclopedia. The MKS system of units is
a physical system of measurement that uses the meter, kilogram, and second
(MKS) as base units.
Can you correct dimensionally correct equations?
An equation is said to be dimensionally correct when the dimension on both sides of the equation is the same. Otherwise, the equation is said to be dimensionally wrong. … Any equation that fails this test is proved wrong. However,
a dimensionally correct equation cannot be considered as a correct equation
.
Can a dimensionally correct equation may be incorrect?
A dimensionally incorrect equation
must be not incorrect
.
Can dimensional analysis tell you that a physical relation is completely right?
No,
dimensional analysis does not tell that a physical relation is completely right
because numerical factors in the relation cannot be determined. … Although the dimension less quantities doesn’t have dimensions but they can have unit associated with them.
Are all dimensionally correct?
❚⠀ ⠀
No all dimensionally correct equations are not numerically correct
because in the use of dimensions numerical constants are said to be dimensionless and thus we cannot specify if there is the need of numerical constants in the equations.
Is V 2 U 2 2as dimensionally correct?
Check the accuracy of relation v2−u2=2as, where v and u are the final and initial velocities, a is the acceleration, and s is the distance. … Hence the given relation is
accurate
.
What is the correct equation for pressure?
Pressure is the force per unit perpendicular area over which the force is applied,
p=F/A
.
Is V v0 at dimensionally correct?
Note that v and v0 are velocities and that a is an acceleration. Write the dimension of each term. The dimensions of both the sides are the same. Thus,
the equation is dimensionally consistent
.
Is MGH 1 2mv2 dimensionally correct?
Answer: The
equation is correct
.
What is the dimension of E mc2?
since the
dimension of E is equal to mc^2
,hence einstein’s equation is dimensionally consistent.
