Circumference of a tree trunk can be measured using:
I. Metre scale and thread
II. Only thread
III. Only metre scale
IV. Only measuring tape

I and III

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I and IV

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None of the above

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I only

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Solution

The correct option is B I and IV

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Similar questions

Q. Answer the following : (a)You are given a thread and a metre scale. How will you estimate the diameter of the thread ? (b)A screw gauge has a pitch of 1.0 mm and 200 divisions on the circular scale. Do you think it is possible to increase the accuracy of the screw gauge arbitrarily by increasing the number of divisions on the circular scale ? (c) The mean diameter of a thin brass rod is to be measured by vernier callipers. Why is a set of 100 measurements of the diameter expected to yield a more reliable estimate than a set of 5 measurements only ?

Answer the following:

(a) You are given a thread and a metre scale. How will you estimate the diameter of the thread?

(b) A screw gauge has a pitch of 1.0 mm and 200 divisions on the circular scale. Do you think it is possible to increase the accuracy of the screw gauge arbitrarily by increasing the number of divisions on the circular scale?

(c) The mean diameter of a thin brass rod is to be measured by vernier callipers. Why is a set of 100 measurements of the diameter expected to yield a more reliable estimate than a set of 5 measurements only?

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Circumference of a tree trunk can be measured using:​​ I. Metre scale and thread​ II. Only thread​ III. Only metre scale​ IV. Only measuring tape​

The correct option is B I and IV​

Circumference of a tree trunk can be measured using:
I. Metre scale and thread
II. Only thread
III. Only metre scale
IV. Only measuring tape

The correct option is B I and IV