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Zero Error and Correct Way to Measure Length

Four pieces o...

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Question 7

Four pieces of wooden sticks A, B, C and D are placed along the length of 30 cm long scale as shown in Fig. Which one of them is 3.4 cm in length?

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Solution

Length of A = (2.7 – 0.3) cm = 2.4 cm
Length of B = (6.5 – 3.4) cm = 3.1 cm
Length of C = (10.4 – 7.0) cm = 3.4 cm
Length of D = (14.4 – 10.7) cm = 3.7 cm

so, thr wooden stick C corresponds to 3.4 cm.

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Zero Error and Correct Way to Measure Length

Standard VI Physics

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