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PHYSICS CH 1 Measurement — Science STD 9 — Question

Tamilnadu BoardEnglish MediumSTD 9SciencePHYSICS CH 1 Measurement2 Marks
Question
Numerical Problem.

The main scale reading while measuring the thickness of a rubber ball using Vernier caliper is 7 cm and the Vernier scale coincidence is 6. Find the radius of the ball.

✓

Answer

Given: The main scale reading = 7 cm
Vernier scale coincidence = 6
we know that least count of vernier = 0.01 cm
The radius of the ball = MSR + VC × LC
= 7 cm + 6 × 0.01 cm
= 7 cm + 0.06 cm = 7.06 cm

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