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NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS
1
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Understanding
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Assertion : Avogadro’s number is the number of atoms
in one gram mole.
Reason : Avogadro’s number is a dimensionless constant.
in one gram mole.
Reason : Avogadro’s number is a dimensionless constant.
View answer and explanation
Correct option: C
Assertion is correct, reason is incorrect
Option C is correct. Avogadro's number is the number of atoms in one gram mole, but it is not a dimensionless constant; it has units of mol⁻¹.
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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
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