Practice question

MCQ

Question

In dimensional analysis, what is true about the arguments of functions like sine or logarithm?

Options

Choose one · Correct answer highlighted

They must have units They must have dimensions of time They can have any dimensions They must be dimensionless Correct

Explanation

From Section 1.6.1: Arguments of trigonometric, logarithmic, and exponential functions must be dimensionless (e.g., angle as [L]/[L] ). This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

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