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Units and Measurements question

2016 · 10 Apr · Shift 1 · Q60
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Units and Measurements question

2016 · 10 Apr · Shift 1 · Q60

JEE MainPhysicsUnits and MeasurementsMultiple correct+4 / −1
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 ?
  1. A
    A2 −-− B2C2
  2. B
    (A−C)D{{\left( {A - C} \right)} \over D}D(A−C)​
  3. C
    AB−C{A \over B} - CBA​−C
  4. D
    CBD−AD2C{C \over {BD}} - {{A{D^2}} \over C}BDC​−CAD2​
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