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NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS

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Understanding +4 | -1

Which one of the following is not a unit of Young’s modulus?

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Correct option: A

\mathrm{N}{\mathrm{m}^{ - 1}}

Option A (

\mathrm{N}{\mathrm{m}^{ - 1}}

) is the correct answer because it represents force per unit length, not stress per unit strain, which is Young's modulus.

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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}} }}