Tuesday, 20 September 2022

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

RECENT UPDATES

School holiday

SCHOOL HOLIDAY IN OCTOBER: ਅਕਤੂਬਰ ਮਹੀਨੇ ਦੀਆਂ ਛੁੱਟੀਆਂ ਦੀ ਸੂਚੀ, 13 ਦਿਨ ਬੰਦ ਰਹਿਣਗੇ ਸਕੂਲ

SCHOOL HOLIDAYS IN  OCTOBER 2022: ਅਕਤੂਬਰ   ਮਹੀਨੇ ਬੱਚਿਆਂ ਨੂੰ ਛੁਟੀਆਂ ਹੀ ਛੁਟੀਆਂ  ਪਿਆਰੇ ਵਿਦਿਆਰਥੀਓ, ਤਿਓਹਾਰਾਂ ਦੇ ਮਹੀਨੇ ਸ਼ੁਰੂ ਹੋ ਗਏ ਹਨ , ਅਤੇ ਇਹਨਾਂ ਮ...

Today's Highlight