Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Properties of Matter question

2016 · Q154
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Physics
  4. /Properties of Matter
  5. /2016 · Q154

Properties of Matter question

2016 · Q154

NEETPhysicsProperties of MatterMCQ+4 / −1
A rectangular film of liquid is extended from (4 cm ×\times× 2 cm) to (5 cm ×\times× 4 cm). If the work done is 3 ×\times× 10−-−4 J, the value of the surface tension of the liquid is
  1. A
    0.250 N m−-−1
  2. B
    0.125 N m−-−1
  3. C
    0.2 N m−-−1
  4. D
    8.0 N m−-−1
View written solutionFree

Correct answer: B

We have d = 2700 m, ρ = 103 kg/m3, compressibility = 45.4 × 10−11 /pascal

Now the pressure at bottom of ocean is

p = ρgd

= 103 × 10 × 2700

= 27 × 106 Pa

Hence, fractional compression

= 45.4 × 10−11 × 27 × 106

= 1.2 × 10−2 = 0.125 N m−-−1

PreviousNext

More from Properties of Matter

  • The value of coefficient of volume expansion of glycerin is 5 × 10−4 K−1. The fractional change in the density of glycerin for a rise of 40oC in its temperature, is2015 · MCQ
  • The cylindrical tube of a spray pump has radius R, one end of which has n fine holes, each of radius r. If the speed of the liquid in the tube is V, the speed of the ejection of the liquid through the holes is2015 · MCQ
  • Water rises to a height h in capillary tube. If the length of capillary tube above the surface of water is made less than h, then2015 · MCQ
  • The Young's modulus of steel is twice that of brass. Two wires of same length and of same area of cross section, one of steel and another of brass are suspended from the same roof. If we want the lower ends of the wires to be at the same…2015 · MCQ
  • The two ends of a metal rod are maintained at temperatures 100oC and 110oC. The rate of heat flow in the rod is found to be 4.0 J/s. If the ends are maintained at temperatures 200oC and 210oC, the rate of heat flow will be2015 · MCQ
  • A wind with speed 40 m/s blows parallel to the roof of a house. The area of the roof is 250 m2. Assuming that the pressure inside the house is atmospheric pressure, the force exerted by the wind on the roof and the direction of the force…2015 · MCQ
  • On observing light from three different starts P, Q and R, it was found that intensity of violet colour is maximum in the spectrum of P, the intensity of green colour is maximum in the spectrum of R and the intensity of red colour is…2015 · MCQ
  • The approximate depth of an ocean is 2700 m. The compressiblity of water is 45.4 × 10−11 Pa−1 and density of water is 103 kg/m3. What fractional compression of water will be obtained at the bottom of the ocean?2015 · MCQ