The Young's modulus of a steel wire of length 6 m and cross-sectional area 3 mm², is 2 × 11¹¹N/m². The wire is suspended from its support on a given planet. A block of mass 4 kg is attached to the free end of the wire. The acceleration due to gravity on the planet is \(\frac{1}{4}\) of its value on the earth. The elongation of wire is (Take g on the earth =10 m/s²)

[JEE Main 2023, 1 Feb (Shift 2)]

Question

The Young's modulus of a steel wire of length 6 m and cross-sectional area 3 mm², is 2 × 11¹¹N/m². The wire is suspended from its support on a given planet. A block of mass 4 kg is attached to the free end of the wire. The acceleration due to gravity on the planet is \(\frac{1}{4}\) of its value on the earth. The elongation of wire is (Take g on the earth =10 m/s²)

[JEE Main 2023, 1 Feb (Shift 2)]

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The Young's modulus of a steel wire of length 6 m and cross-sectional area 3 mm 2 , is 2 × 11 11 N/m 2 . The wire is sus…

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