NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS

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Application +4 | -1

The dimensional formula of coefficient of viscosity is

\left( {F = \eta A\frac{{\Delta V}}{{\Delta x}}} \right)

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Correct option: D

M{L^{ - 1}}{T^{ - 1}}

Option D (

M{L^{ - 1}}{T^{ - 1}}

) is correct because the coefficient of viscosity relates force to area and velocity gradient, and its dimensions can be derived from the given formula.

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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

\frac{1}{{\sqrt {{\varepsilon _0}{\mu _0}} }}

is that of