Question : What is the unit of relative density?
Option 1: kg/m
Option 2: kg/m2
Option 3: kg/m3
Option 4: It has no unit
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Correct Answer: It has no unit
Solution : The correct option is It has no unit.
The ratio of a substance's density to the density of water at 4°C is known as its relative density or specific density. Since the ratio's numerator and denominator share the same units, they cancel out. Therefore, Relative Density has no unit.
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Question : S.I. unit of magnetic flux is:
Option 1: Weber
Option 2: Weber/m
Option 3: Weber/m4
Option 4: Weber-m2
Question : The dimensional formula for universal gravitational constant is
Option 1: M-1L3T2
Option 2: ML2T-2
Option 3: M-2
Option 4: M-1L3T-2
Question : The volume of air in a room is 204 m3. The height of the room is 6 m. What is the floor area of the room?
Option 1: 32 m2
Option 2: 46 m2
Option 3: 44 m2
Option 4: 34 m2
Question : Water has maximum density at
Option 1: 100oC
Option 2: 0oC
Option 3: 4oC
Option 4: 273oC
Question : The dimensions of force are:
Option 1: M0 L3 T0
Option 2: ML-3 T0
Option 3: M0 LT-1
Option 4: MLT-2
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