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प्रश्न
Why would you not like to use a measuring tape made of an elastic material like rubber to measure distance? What would be some of the problems you would meet in telling someone about a distance you measured with such a tape?
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उत्तर
An elastic measuring tape is stretchable. It cannot be used to measure distances because the length of the tape may change on stretching. As a result, the measured length would not be correct.
If you measure the length of an object twice using elastic tape, then you may get different values of the same length each time. This is because elastic tapes are stretchable.
संबंधित प्रश्न
Fill in the blank:
The S.I. unit of length is ............ of time is ............ of mass is ............
State if the following statement is true or false. Correct the statement if it is false.
A ruler with a damaged end can be used to measure a length accurately.
Why can hand span and arm length not be used as standard units of length?
How many centimetres are there in 1m?
Name the device used to measure the following:
Size of your wrist.
State two precautions to be observed while measuring length with the help of a metre scale.
How can a measured length be expressed?
One metre is ______ cm.
The area can be calculated by using the two lengths and width.
Which of the following figure shows the correct placement of a block along a scale for measuring its length?
