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Properties of Matter question

2022 · 27 Jul · Shift 2 · Q47
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Properties of Matter question

2022 · 27 Jul · Shift 2 · Q47

JEE MainPhysicsProperties of MatterMCQ+4 / −1
A steel wire of length 3.2 m(Ys=2.0×1011 Nm−2)3.2 \mathrm{~m}\left(\mathrm{Y}_{\mathrm{s}}=2.0 \times 10^{11} \,\mathrm{Nm}^{-2}\right)3.2 m(Ys​=2.0×1011Nm−2) and a copper wire of length 4.4 m(Yc=1.1×1011 Nm−2)4.4 \mathrm{~m}\left(\mathrm{Y}_{\mathrm{c}}=1.1 \times 10^{11} \,\mathrm{Nm}^{-2}\right)4.4 m(Yc​=1.1×1011Nm−2), both of radius 1.4 mm1.4 \mathrm{~mm}1.4 mm are connected end to end. When stretched by a load, the net elongation is found to be 1.4 mm1.4 \mathrm{~mm}1.4 mm. The load applied, in Newton, will be: (\quad\left(\right.( Given π=227\pi=\frac{22}{7}π=722​)
  1. A
    360
  2. B
    180
  3. C
    1080
  4. D
    154
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