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NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS
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The relative error in the determination of the surface area of a sphere is . Then the relative error in the determination of it’s volume is
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Correct option: A
Option A () is correct because the volume is proportional to the radius cubed, and the surface area is proportional to the radius squared, so the relative error in volume is 3/2 times the relative error in surface area.
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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 is that of
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 is that of