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Units and Dimensions

57. how numer...

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57. how numerical value is inversely proportional to its unit

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Q. Always in a physical quantity, the numerical value is inversely proportional to its units.

N \propto \frac{1}{U}

u_{1}

u_{2}

n_{1}, n_{2}

are their numerical values in two different systems then

n_{1} > n_{2} \Rightarrow u_{1} < u_{2}

.
R: The numerical value of physical quantity is inversely proportional to unit.

Q. The electric intensity due to an infinite cylinder of radius R and having charge q per unit length at a distance r(r > R) from its axis is

Q. A physical quantity is measured and the result is expressed as much where u is the unit used and n is the numerical value. If the result is expressed in various units then
(A) n proportional size of u
(B) n proportional u square
(C) n proportional √u
(D) n proportional 1/u
Tell me how?

A

be the vertex of the parabola

y^{2} = 4 a x

and the length of focal chord

P Q

l units

. If perpendicular distance from vertex to

P Q

p units

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