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NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS
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Medium
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Analyzing
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Assertion A: If in five complete rotations of the circular scale, the distance travelled on main scale of the screw gauge is 5 mm and there are 50 total divisions on circular scale, then least count is 0.001 cm.
Reason R: Least count =
In the light of the above statements, choose the most appropriate answer from the options given below.
Reason R: Least count =
In the light of the above statements, choose the most appropriate answer from the options given below.
View answer and explanation
Correct option: D
A is not correct but R is correct
Option D (A is not correct but R is correct) is correct because the assertion incorrectly calculates the least count, while the reason provides the correct formula.
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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