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1.Units, Dimensions and Measurement
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એવી જોડને ઓળખો (તારવો) કે જેના પરિમાણ સમાન હોય.
A
ટોર્ક અને કાર્ય
B
તણાવ (પ્રતિબળ) અને ઊર્જા
C
બળ અને તણાવ
D
બળ અને કાર્ય
Solution
we know, force $=$ mass $\times$ acceleration
energy $=$ Workdone $=$ force $\times$ displacement
power $=$ energy $/$ time
torque $=$ force $\times$ perpendicular distance between force and axis of rotation.
now, by these formula, find dimension of all terms.
e.g., dimension of force $=\left[ MLT ^{-2}\right]$
dimension of energy $=\left[ ML ^2 T ^{-2}\right]$
dimension of power $=\left[ ML ^2 T ^{-3}\right]$
dimension of torque $=\left[ ML ^2 T ^{-2}\right]$
Here it is clear that, dimension of energy and dimension of torque are equal.
Standard 11
Physics
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