SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a straight line with an intercept on the y axis
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a straight line through the origin
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a straight line through the origin, up to a limit of proportionality
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an upward curve that passes through the origin
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Detailed explanation-1: -Limit of proportionality The higher the spring constant, the stiffer the spring. The spring constant is different for different elastic objects. For a given spring and other elastic objects, the extension is directly proportional to the force applied. For example, if the force is doubled, the extension doubles.
Detailed explanation-2: -The area under the force-extension graph is equal to the potential energy stored.
Detailed explanation-3: -extension of an elastic object is directly proportional to the force applied to it. In other words: • If the force applied is doubled, the extension doubles • If no force is applied, there is no extension The graph of force against extension is a straight line through the origin, which shows a linear relationship.