NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS

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If the digit to be dropped is more than 5, then the preceding digit is _____.

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Correct option: A

Raised by 1

Option A (Raised by 1) is correct because this is the standard rounding rule: if the digit to be dropped is greater than 5, the preceding digit is increased by 1.

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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