Volume 1

Two substances of relative densities ρ1 and ρ2 are mixed in equal volume and the relative density of mixture is 4. When they are mixed in equal masses, the relative density of the mixture is 3. The values of ρ1 and ρ2 are : the relative density of the mixture is 3. The values of [...]

A small ball of relative density 0.8 falls into water from a height of 2m. The depth to which, the ball will sink, is (neglect viscous forces) A small ball of relative density 0.8 falls into water from a height of 2m. The depth to which is (neglect viscous forces) the ball will sink September [...]

The density of ice is x g/c^3 and that of water is y g/c^3 when m gram of ice melts, then the change in volume is The density of ice is x g/c^3 and that of water is y g/c^3 when m gram of ice melts then the change in volume is September 18, 2020 [...]

A tank full of water has a small hole at its bottom. Let t1 be the time taken to empty the first half of the tank and t2 be the time needed to empty the rest half of the tank, then A tank full of water has a small hole at its bottom. Let t1 [...]

Two capillary tubes P and Q are dipped in water. The height of water level in capillary P is 2/3 to the height in Q capillary. The ratio of their diameters is Two capillary tubes P and Q are dipped in water. The height of water level in capillary P is 2/3 to the height [...]

Water rises in a capillary tube to a certain height such that the upward force due to surface tension is balanced by 75×10^−4 newton force due to the weight of the liquid. If the surface tension of water is 6×10^-2` N/m the inner circumference of the capillary must be: Which graph represents the variation of [...]

Two parallel glass plates are dipped partly in a liquid of density d keeping them vertical. If the distance between the plates is ′x Surface tension for liquid is T & angle of contact is θ then rise of liquid between the plates due to capillary will be Which graph represents the variation of surface [...]

Which graph represents the variation of surface tension with temperature over small temperature ranges for water? Which graph represents the variation of surface tension with temperature over small temperature ranges for water? September 18, 2020 Category: Arihant Physics by D.C Pandey , Chapter 13 - Fluid Mechanics , Volume 1 ,

Two soap bubbles of radii r1and r2 equal to 4 cm and 5 cm are touching each other over a common surface S1S2 (shown in figure). Its radius will be: Two soap bubbles of radii r1and r2 equal to 4 cm and 5 cm are touching each other over a common surface S1S2 (shown in [...]

The surface tension of a soap solution is 25×10^−3 N/m. The excess pressure inside a soap bubble of diameter 1cm is: The surface tension of a soap solution is 25×10^−3 N/m. The excess pressure inside a soap bubble of diameter 1cm is: September 18, 2020 Category: Arihant Physics by D.C Pandey , Chapter 13 - [...]