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Properties of Matter question

2023 · 1 Feb · Shift 2 · Q55
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  5. /2023 · 1 Feb · Shift 2 · Q55

Properties of Matter question

2023 · 1 Feb · Shift 2 · Q55

JEE MainPhysicsProperties of MatterMCQ+4 / −1
The Young's modulus of a steel wire of length 6 m6 \mathrm{~m}6 m and cross-sectional area 3 mm23 \mathrm{~mm}^{2}3 mm2, is 2×1011 N/m22 \times 10^{11}~\mathrm{N} / \mathrm{m}^{2}2×1011 N/m2. The wire is suspended from its support on a given planet. A block of mass 4 kg4 \mathrm{~kg}4 kg is attached to the free end of the wire. The acceleration due to gravity on the planet is 14\frac{1}{4}41​ of its value on the earth. The elongation of wire is (Take ggg on the earth =10 m/s2=10 \mathrm{~m} / \mathrm{s}^{2}=10 m/s2) :
  1. A
    0.1 cm
  2. B
    1 cm
  3. C
    0.1 mm
  4. D
    1 mm
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