Smaller the least count of the instrument more is the measurement________________?
Correct answer: B. Precise
- A. Accurate
- B. Precise
- C. Accurate and precise
- D. None of these
Explanation
A smaller least count lets an instrument resolve smaller changes, so it gives greater precision. Accuracy also depends on calibration and systematic error, so students who choose c misunderstand precision as guaranteed closeness to the true value.
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About Displacement and Velocity
Displacement is the directed change in position, while velocity is the rate of change of displacement and includes both magnitude and direction. The topic connects position-time and velocity-time graphs with average and instantaneous values, and distinguishes displacement from distance and velocity from speed.
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