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Question
The diagram shows a force – extension graph for a rubber band. Consider the following statements
I. Steel has similar force extension curve
II. Rubber does not return to its original length after it is stretched
III. The rubber band will get heated if it is stretched and released
Which of these can be deduced from the graph?
The diagram shows a force – extension graph for a rubber band. Consider the following statements
I. Steel has similar force extension curve
II. Rubber does not return to its original length after it is stretched
III. The rubber band will get heated if it is stretched and released
Which of these can be deduced from the graph?
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Solution
The correct option is B. III only.
Statement III is correct since some energy is lost when a band is stretched and released.
The area enclosed in the x-F graph gives the work done in the process. From the graph, the net work done W>0 which heats up the rubber band.
The correct option is B. III only.
Statement III is correct since some energy is lost when a band is stretched and released.
The area enclosed in the x-F graph gives the work done in the process. From the graph, the net work done W>0 which heats up the rubber band.
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