1.Units, Dimensions and Measurement
medium

ઊર્જા $(E)$,વેગ $(v)$ અને બળ $(F)$ મૂળભૂત રાશિ હોય,તો દળનું પારિમાણીક સૂત્ર શું થાય?

A

$ E{v^2} $

B

$ E{v^{ - 2}} $

C

$ F{v^{ - 1}} $

D

$ F{v^{ - 2}} $

Solution

(b) Let $m \propto {E^x}{v^y}{F^z}$

By substituting the following dimensions :

$[E] = [M{L^2}{T^{ – 2}}],\,[v] = [L{T^{ – 1}}],\,[F] = [ML{T^{ – 2}}]$

and by equating the both sides $x = 1,\,y = – 2,\,z = 0$.

So $[m] = [E{v^{ – 2}}]$

Standard 11
Physics

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