Careers360 Logo
NEET Correction Window 2024 (Closed) - Last Date to Edit Form, How to correct

Access premium articles, webinars, resources to make the best decisions for career, course, exams, scholarships, study abroad and much more with

Plan, Prepare & Make the Best Career Choices

Dimensions Of Physical Quantities - Practice Questions & MCQ

Edited By admin | Updated on Sep 25, 2023 25:23 PM | #NEET

Quick Facts

  • 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.

  • 42 Questions around this concept.

Solve by difficulty

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.

Out of the following pairs which one does not have identical dimensions is

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 ?

Apply to Amrita Vishwa Vidyapeetham Allied & Life Science 2024

Begin a career in Medical and Allied Sciences. Admissions Open for

Concepts Covered - 4

Dimension

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:

  1. Mass - M

  2. Length - L

  3. Time - T

  4. Electric current - A

  5. Temperature - K

Frequency, angular frequency, angular velocity, velocity gradient

All these quantities will have the same dimensional formula which is equal to

While the SI unit of  Frequency and velocity gradient is ,

And SI unit of angular frequency and angular velocity is

Note:- Angle is a dimensionless quantity

Work, Potential Energy, Kinetic Energy, Torque

All these quantities will have the same dimensional formula which is equal to

All these quantities will have the same unit in the SI system which is equal to

Momentum, Impulse , Angular momentum, Angular impulse
  • Momentum and Impulse both have the  same dimensional formula which is equal to MLT^{-1}

  • And Both  have the same SI unit which is equal to

  • Angular Momentum and Angular Impulse have the same dimensional formula which is equal toML^2T^{-1}and have the same SI unit which is equal to kg(m)^2(sec)^{-1}

Study it with Videos

Dimension
Frequency, angular frequency, angular velocity, velocity gradient
Work, Potential Energy, Kinetic Energy, Torque

"Stay in the loop. Receive exam news, study resources, and expert advice!"

Get Answer to all your questions

Back to top