the power of M
dimensional formula of work and momentum is equal
true or false
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11th
Physics
Units and Measurement
Dimensions and Dimensional Analysis
Which of the following phys...
PHYSICS
Which of the following physical quantities do not have the same dimensional formula?
MEDIUM
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ANSWER
Work and torque both are represented as force multiplied by distance therefore must have the same dimensional formula.
Angular momentum can be written as L=mvr which gives its dimensions i.e. kg m
2
s
−1
and it is same as that of plank's constant.
As we know E=hν
∴ h=E/ν
However tension which is defined as force and surface tension which is defined as force per unit length must have different dimensional formulas.
Impulse is change is linear momentum over a time interval, therefore has the same dimension as the linear momentum.
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