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NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS
1
Medium
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Understanding
+4 | -1
State the number of significant figures in the
following:
(i) 2.000 m (ii) 5100 kg (iii) 0.050 cm.
following:
(i) 2.000 m (ii) 5100 kg (iii) 0.050 cm.
View answer and explanation
Correct option: A
(i) - 4; (ii) - 4; (iii) - 2
Option A ((i) - 4; (ii) - 4; (iii) - 2) is correct because 2.000 has 4 significant figures, 5100 kg has 2 or 4 (ambiguous), but assuming it's measured to the nearest kg, it's 4, and 0.050 cm has 2.
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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