rty: PHYS-1 10 × y w 2. Measurements and De ets & Slides | chrome-extension://bp

Question

rty: PHYS-1 10 × y w 2. Measurements and De ets & Slides | chrome-extension://bpmcpldpdmajfigpchkicefoigmkfalc/views/app.html y.docx . Times New 12 , Blu A.. 2. The diagrams below show readings of a vernier caliper, Figure (1.a) shows the zero error reading, Figure (1.b) the reading when the vernier caliper is being used to measure the diameter of a ball. What is the actual diameter of the ball? (include the units in parenthesis). 6 7 Am Figure 1.a Figure 1.b Answer: Zero Reading Reading of main scale Reading of vernier scale Total reading of the vernier caliper Actual diameter of the ball 2

Explanation / Answer

answer

zero reading = 0

main scale reading = 5.9 cm

(because first line of vernier scale is lying between 5.9 and 6 cm)

reading on vernier scale = 3

total reading = 5.9+3*(0.01) = 5.9+0.03 = 5.93 cm

0.01 cm is the least count

actual diameter of the ball is d = 5.93 cm

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