JEE Main Physics question

Which is different from others by units? **[Orissa JEE 2002]**

(A)Phase difference
(B)Mechanical equivalent
(C)Loudness of sound
(D)Poisson's ratioCorrect

Answer: (D)

Solution

Phase difference (radian), mechanical equivalent of heat, and loudness of sound (on the decibel/log scale) are effectively treated as dimensionless in this comparison, while Poisson's

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Question ID VK-157294