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NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS

1 Easy

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Understanding +4 | -1

If the absolute errors in two physical quantities

A

and

B

are

a

and

b

respectively, then the absolute error in the value of

A-B

are

View answer and explanation

Correct option: C

a+b

Option C (

a+b

) is correct because the absolute error in the difference of two quantities is the sum of their absolute errors.

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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}} }}