JEE Advanced Model Paper 18 with solutions for online practice

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Paragraph- I For Question No.s 11 to 12 :

Standing transverse waves can be set up in a string clamped at both ends and undertension. For Example an arrangement such as one shown in the figure can set up suchstanding waves. The weight W provides the necessary tension. In one such arrangement awire of length L , is in resonance in fundamental mode with a tuning fork.
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