JEE PHYSICS MCQ: UNITS & MEASUREMENTS

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Statement-I: Solid angle is dimensionless quantity and it is a supplementary quantity.
Statement-II: All supplementary quantities are dimensionless.

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Correct option: A

Statement-I is true and statement-II is true

Option A (Statement-I is true and statement-II is true) is correct because solid angle is dimensionless and a supplementary quantity, and all supplementary quantities are dimensionless.

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Assertion :

\sqrt{\frac{\text { Modulus of elasticity }}{\text { Density }}}

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\mathrm{ms}^{-1} \text {. }

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\frac{1}{\left(\sqrt{\varepsilon_0 \mu_0}\right) t} \text {. }

The method of dimensional analysis can be used to derive which of the following relations? Statement-I: Dimensions of constant of proportionality of constants can be derived from dimensional method
Statement-II: Numerical value of constant of proportionality can be found from experiments only The dimensions of torque are The physical quantity having the dimensions

\left[ {{\mathrm{M}^{ - 1}}{\mathrm{L}^{ - 3}}{\mathrm{A}^2}{T^3}} \right]

is A quantity X is given by

{\varepsilon _0}L\frac{{\Delta V}}{{\Delta t}},\;

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{\varepsilon _0}

is the permittivity of free space, L is a length,

{\Delta V}

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{\Delta t}

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