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NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS
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Three pieces of silver have masses 2.3 kg, 41.15 g and 30.19 g. The total mass of correct significant figures is
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Correct option: D
2.4 kg
Option D (2.4 kg) is correct because when adding numbers with different decimal places, the result should be rounded to the least number of decimal places.
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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