An aluminium wire of length 60 cm is joined to a steel wire of length 80 cm and stretched between two fixed supports. The tension produced is 40 N. Cross-sectional area is 1 mm 2 (steel) and 3 mm 2 (aluminium). Minimum frequency of the tuning fork which can produce standing waves with the joint as a node is - (density of Al = 2.6 g cc –1 and density of steel = 7.8 g cc –1 ) –
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Verified by ExpertsThe correct answer is:
C
Since frequency remains same
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