Physics

Give two example of dimension less variables.


SOLUTION
Coefficient of Friction $$(\mu)$$ and and Relative Density are dimensionless variables.  
View Answers

You're just one step away

Create your Digital Resume For FREE on your name's sub domain "yourname.wcard.io". Register Here!


Subjective Medium Published on 18th 08, 2020
Next Question
Questions 244531
Subjects 8
Chapters 125
Enrolled Students 202
Enroll Now For FREE

Realted Questions

Q1 Single Correct Medium
The dimensions of $$\dfrac {1}{\epsilon_0}\dfrac {e^2}{hc}$$ are
  • A. $$M^{-1}L^{-3}T^4A^2$$
  • B. $$ML^{3}T^{-4}A^{-2}$$
  • C. $$M^0L^0T^0A^0$$
  • D. $$M^{-1}L^{-3}T^2A$$

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q2 Single Correct Medium
What is the dimensional formula of Inductance?
  • A. $$[ML^2T^{-2}A^{-2}]$$
  • B. $$[ML^2TA^{-2}]$$
  • C. $$[ML^2T^{-1}A^{-2}]$$
  • D. $$[ML^2T^{-2}A^{-1}]$$

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q3 Single Correct Medium
In a hypothetical system the physical quantities, time (T), volume (V) and momentum (p) have been chosen as fundamental quantities. In this system mechanical power will be expressed as 
  • A. $$[{ p }^{ -2 }{ V }^{ 3 }T]$$
  • B. $$[{ p }^{ -2 }{ V }^{ 3 }{ T }^{ -1/2 }]$$
  • C. $$[p{ V }^{ 1/3 }{ T }^{ -2 }]$$
  • D. $$[p{ V }^{ 2 }{ T }^{ -1/3 }]$$

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q4 Single Correct Medium
The set of physical quantities among the following which are dimensionally different is:
  • A. terminal velocity, drift velocity, critical velocity
  • B. potential energy, work done, kinetic energy
  • C. pressure, stress, rigidity modulus
  • D. disintegration constant, frequency, angular velocity
  • E. dipole moment, electric flux, electric field

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q5 Single Correct Medium
The dimensional formula of pressure is 
  • A. $$ [MLT^{-2} ] $$
  • B. $$ [ML^2T^{-2} ] $$
  • C. $$ [ML^{-1}T^{-2} ] $$
  • D. $$ [M^0L^{-1}T^{-2} ] $$

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer