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Dimension, Frequency, angular frequency, angular velocity, velocity gradient, Work, Potential Energy, Kinetic Energy, Torque, Momentum, Impulse , Angular momentum, Angular impulse is considered one of the most asked concept.
26 Questions around this concept.
A, B, C and D are four different physical quantities having different dimensions. None of them is dimensionless. But we know that the equation AD = C ln(BD) holds true. Then which of the combination is not a meaningful quantity?
Which one of the following represents the correct dimensions of the coefficient of viscosity?
Identify the pair whose dimensions are equal.
NEET 2025: Syllabus | Most Scoring concepts | NEET PYQ's (2015-24)
Out of the following pairs which one does not have identical dimensions is
Which of the following statements is true about physical quantity work and torque?
A force of 10 N is applied to a lever arm of length 5 m. If the torque produced by the force is 50 Nm, what is the value of the dimensionless constant in the torque formula $T=k F r^a$?
Which pair has the same dimension?
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The power to which fundamental quantities must be raised in order to express the given physical quantities.
For representing dimensions of different quantities, we use the following symbols:
Mass - M
Length - L
Time - T
Electric current - A
Temperature - K
All these quantities will have the same dimensional formula which is equal to $M^0 L^0 T^{-1}$
While the SI unit of Frequency and velocity gradient is $\sec ^{-1}$.
The S.I. unit of angular frequency and angular velocity is radians per sec
Note:- Angle is a dimensionless quantity.
All these quantities will have the same dimensional formula which is equal to $M L^2 T^{-2}$
All the e quantities will have the same unit in the SI system which is equal to $\mathrm{N}-\mathrm{m}$ or Joule
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