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NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS
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Which of the following physical quantities has neither dimensions nor unit?
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Correct option: C
Coefficient of friction
Option C (Coefficient of friction) is correct because it is a dimensionless ratio of two forces and therefore has no unit.
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Statement-I: Random errors can be positive or negative.
Statement-II: Cause of random errors are uncertain. An object is moving through the liquid. The viscous damping force acting on it is proportional to the velocity. Then dimension of constant of proportionality is The error due to parallax is a: 2.34 is obtained by rounding of the number The dimensional formula of self-inductance is The dimension of is that of
Statement-II: Cause of random errors are uncertain. An object is moving through the liquid. The viscous damping force acting on it is proportional to the velocity. Then dimension of constant of proportionality is The error due to parallax is a: 2.34 is obtained by rounding of the number The dimensional formula of self-inductance is The dimension of is that of