Properties of Matter 1 Question 19

19. A wire of length L and cross-sectional area A is made of a material of Young’s modulus Y. If the wire is stretched by an amount x, the work done is ……. .

(1987, 2M)

Show Answer

Answer:

Correct Answer: 19. 12(YAL)x2

Solution:

W=12Kx2

Here, K=YAL

∴W=12(YAL)x2

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