This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
ScanSolve AI Answer
a) What is meant by the least count of a measuring instrument? Step 1: The least count of a measuring instrument is the smallest value (length) which can be accurately measured using it. Step 2: For a simple scale (without vernier), least count = length of the smallest division on the main scale. b) Find and write the least count of this scale. Step 1: Observe the given ruler scale. The centimeter scale has major markings every 1 cm and minor markings every 1 mm (10 minor divisions per cm). The inch scale has major markings every 1 inch and minor markings every (1)/(8) inch (or (1)/(16) inch, but larger than 1 mm). Step 2: Formula for least count of simple scale: Least count = smallest division on the scale Step 3: Substitute the smallest division observed: The smallest division is 1 mm on the cm side. Step 4: Simplify: Least count = 1 mm. Final answer: Least count = 1 mm