NEET II 2016 physics questions with solutions

Showing 1–2 of 2 questions

• MCQmediumProperties of solid and fluidSurface Tension, Surface Energy and Their Applications

  Liquids with densities ρ₁ > ρ₂ > ρ₃ have equal surface tension T and rise to the same height in three identical capillaries. How are their contact angles θ₁, θ₂ and θ₃ ordered?

  Options

  • Option A

    π/2 < θ₁ < θ₂ < θ₃ < π

  • Option B

    π > θ₁ > θ₂ > θ₃ > π/2

  • Option C

    π/2 > θ₁ > θ₂ > θ₃ ≥ 0

  • Option D

    0 ≤ θ₁ < θ₂ < θ₃ < π/2

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• MCQmediumProperties of solid and fluidSurface Tension, Surface Energy and Their Applications

  A rectangular liquid film is enlarged from 4 cm × 2 cm to 5 cm × 4 cm. If the work done is 3 × 10⁻⁴ J, find the surface tension of the liquid.

  Options

  • Option A

    0.2 N/m

  • Option B

    8.0 N/m

  • Option C

    0.250 N/m

  • Option D

    0.125 N/m

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