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प्रश्न
Which of the following physical quantities has neither dimensions nor unit?
पर्याय
angle
luminous intensity
coefficient of friction
current
MCQ
उत्तर
coefficient of friction
Explanation:
Coeff. of friction = `"Applied force"/"Normal reaction"`
= `(["MLT"^-2])/(["MLT"^-2])`
= No dimensions
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