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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