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Answer to Question #37605 in Mechanics | Relativity for sasikanth

Question #37605
Collect 4 springs of same length made of steel, iron, copper and brass. The thickness of wire in all the springs should also be same. First take the steel spring. Fix its one end with a rigid stand and fix a hanger towards the other end on which weights can be placed. Also fix a scale along its side towards the other end.Place a 50 g load on the hanger and measure the extension. Add 50 g load on the hanger in about 5 steps and measure the extension each time. Plot a graph between load and extension. Repeat this activity with springs made of iron, copper and brass. Plot load-extension graph in each case compare these graphs. Which of the above materials obey Hook’s law?
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