MCQ ON DIMENSIONAL ANALYSIS

 

Q1 The dimensions of pressure is 

• `MLT^{-2}`
• `MLT^{-1}`
• `ML^{-1}T^{-2}`
• All 

• `ML^{-1}T^{-2}`

Q2 The  dimensions of impulse  is 

• `ML^{-1}T^{-2}`
• `MLT^{-1}`
• `ML^{-2}T^{-2}`
• `ML^{-1}T^{-3}`

• `MLT^{-1}`

Q3 The  dimensions of torque is

• `ML^{2}T^{-1}`
• `ML^{2}T^{-2}`
• `ML^{-1}T^{-1}`
• `ML^{2}T^{2}`

• `ML^{2}T^{-2}`

Q4 The dimensions of plank's constant are equal to that of

• Energy
• Momentum
• Power
• Angular Momentum

• Angular Momentum

Q5 The Dimensional Formula of Gravitational Constant 'G' 

• `M^{-1}L^{3}T^{-1}`
• `M^{-2}L^{2}T^{-1}`
• `M^{-1}L^{3}T^{-1}`
• `M^{-1}L^{2}T^{-2}`

• `M^{-1}L^{3}T^{-2}`

Q6 Which of the following is a dimensionless quantity

• Stress
• Strain
• Specific Heat
• Current

• Strain

Q7 The  dimensions of angular velocity, is 

• `MLT^{-1}`
• `M^{-0}L^{0}T^{-1}`
• `MLT^{-2}`
• None of the above

• `M^{-0}L^{0}T^{-1}`

 

Q8 A dimensionless quantity 

• never has unit
• always has unit 
• may have a unit
• does not exist

may have a unit

Q9 A unitless quantity  

• Always has a non zero dimensions
• may have a non zero dimensions
• Never  has a non zero dimensions
• does not exist

• Never  has a non zero dimensions

Q10 The dimensions of light year are 

• L
• `LT^{-1}`
•  T
• `T^{-1}`

L