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Properties of Matter question

2016 · 10 Apr · Shift 1 · Q47
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Properties of Matter question

2016 · 10 Apr · Shift 1 · Q47

JEE MainPhysicsProperties of MatterMCQ+4 / −1
A thin 1 m long rod has a radius of 5 mm. A force of 50 π\piπ kN is applied at one end to determine its Young’s modulus. Assume that the force is exactly known. If the least count in the measurement of all lengths is 0.01 mm, which of the following statements is false ?
  1. A
    Δγγ{{\Delta \gamma } \over \gamma }γΔγ​ gets minimum contribution from the uncertainty in the length.
  2. B
    The figure of merit is the largest for the length of the rod.
  3. C
    The maximum value of γ\gammaγ that can be determined is 2 ×\times× 1014 N/m2
  4. D
    Δγγ{{\Delta \gamma } \over \gamma }γΔγ​ gets its maximum contribution from the uncertainty in strain
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