NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS

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Application +4 | -1

If E,m,J and G represent energy, mass, angular momentum and gravitational constant respectively, then the dimensional formula of

E{J^2}/{m^5}{G^2}

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Correct option: D

Dimensionless

Option D (Dimensionless) is correct because when the dimensions of each quantity are substituted and simplified, the resulting expression is dimensionless.

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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