You are provided three scales $A, B$ and $C$ as shown in Fig. to measure a length of $10 c m$ .
For the correct measurement of the length, you will use the scale:

A

only

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B

only

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C

only

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Any of the three scales

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Solution

The correct option is D Any of the three scales
Length of 10 cm is available in all the three scales A, B, and C. So, any of the three scales’ can be used.

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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?

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 ?

Question 9

You are provided three scales A, B and C as shown in Fig. to measure a length of 10 cm.

For the correct measurement of the length, you will use the scale,

(a) A only

(b) B only

(d) Any of three scales

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You are provided three scales A,B and C as shown in Fig. to measure a length of 10 cm.For the correct measurement of the length, you will use the scale:

The correct option is D Any of the three scalesLength of 10 cm is available in all the three scales A, B, and C. So, any of the three scales’ can be used.

You are provided three scales $A, B$ and $C$ as shown in Fig. to measure a length of $10 c m$ .
For the correct measurement of the length, you will use the scale:

The correct option is D Any of the three scales
Length of 10 cm is available in all the three scales A, B, and C. So, any of the three scales’ can be used.