Mechanical Properties of Fluids

Related Questions

• We have two (narrow) capillary tubes $T_1$ and $T_2$. Their lengths are $l_1$ and $l_2$ and radii of cross-section are $r_1$ and $r_2$ respectively. The rate of flow of water under a pressure difference $P$ through tube $T_1$ is $8cm^3/sec$. If $l_1 = 2l_2$ and $r_1 =r_2$, what will be the rate of flow when the two tubes are connected in series and pressure difference across the combination is same as before ($= P$)

  ---

• Hairs of shaving brush cling together when it is removed from water due to

  ---

• In a capillary tube, water rises by 1.2 mm. The height of water that will rise in another capillary tube having half the radius of the first, is

  ---

• A soap bubble in vacuum has a radius of 3 cm and another soap bubble in vacuum has a radius of 4 cm. If the two bubbles coalesce under isothermal condition, then the radius of the new bubble is

  ---

• If work done in increasing the size of a soap film from $10\ cm\times 6\ cm$ to $10\ cm\times 11\ cm$ is $2\times {{10}^{-4}}J,$ then the surface tension is

  ---