Which of the following figure shows the correct placement of a block along a scale for measuring its length?
A
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B
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C
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D
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Solution
The correct option is C
Measurement method:
To measure the length of an object, it has to be placed in between the readings marked on the measuring scale.
For precise and accurate measurement, the side of the block to be measured must be parallel to the scale.
For the correct placement of the block, both the ends of the block should be on the marked side of the scale. The side of the block to be measured should be parallel to the scale.
In option C, the object is placed in between readings on the scale, so it shows the correct placement of a block along a scale for measuring its length.
