Which of the following can be used to measure the length of a curved path?

String

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Barometer

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Weighing scale

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Odometer

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Solution

The correct option is A String
The atmospheric pressure is measured by a barometer. A weighing scale measures the weight of an object. The distance travelled by a vehicle is determined by an odometer. To record the length of a curved line, we can use a string along with a scale.

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