NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS

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Dimensions of planck’s constant is:

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Correct option: A

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

Option A (

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

) is correct because Planck's constant relates energy and frequency (E = hf), and its dimensions can be derived from the dimensions of energy and frequency.

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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