NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS

1 Easy

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Analyzing +4 | -1

A, B

and

C

are physical quantities, having different dimensions, which of the following combination can never be meaningful quantity?

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Correct option: A

(A-B) /C

Option A ((A-B)/C) is correct because for (A-B) to be meaningful, A and B must have the same dimensions, but the question states that A, B, and C have different dimensions.

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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