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If the radius of a soap bubble is r and surface tension of the soap solution is T. Keeping the temperature constant, what is the extra energy needed to double the radius of soap

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Find the work done in breaking a water drop of radius 1 mm into 1000 drops. Given the surface tension of water is `72 × 10^(-3)

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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What is the energy stored in a soap babble of diameter 4 cm, given the surface tension = 0.07

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What is the work done in splitting a drop of water of 1 mm radius into 64 droplets? Given the surface tension of water is `72 × 10^(-3)

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Why should detergents have small angles of

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Show that if two soap bubbles of radii a and b coalesce to from a single bubble of radius c. If the external pressure is P, show that the surface tension T of soap solution is

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What is terminal velocity? What is the terminal velocity of a body in a freely falling

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The diameter of ball A is half that of ball B. What will be their ratio of their terminal velocities in

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Find out the dimensions of co-efficient of

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What is the cause of viscosity in a fluid? How does the flow of fluid depend on

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If eight rain drops each of radius 1 mm are falling through air at a terminal velocity of 5 cm | s. If they coalesce to form a bigger drop, what is the terminal velocity of bigger

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Why does the cloud seem floating in the

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A metal plate 5 cm × 5 cm rests on a layer of castor oil 1 mm thick whose coefficient of viscosity is 1.55 `Nsm^(-2)`. What is the horizontal force required to more the plate with a speed of 2 cm |

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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A small ball of mass ‘m’ and density ‘d’ dropped in a viscous liquid of density ‘d’. After some time, the ball falls with a constant velocity. What is the viscous force on the

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Two capillary tubes of length 15 cm and 5 cm and radii 0.06 cm and 0.02 cm respectively are connected in series. If the pressure difference a cross the end faces is equal to the pressure of 15 cm high water column, then find the pressure difference across the : → 1) first tube 2) Second

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A metallic sphere of radius `1 × 10^(-3) m` and density `1 × 10^4 kg` | `m^3` enters a tank of water after a free fall through a high ‘h’ in earth’s gravitational field. If its velocity remains unchanged after entering water, determine the value of h. Given :-Co-efficient of viscosity of water `= 1 × 10^(-3) Ns` | `m^2; g = 10 m` | `s^2`; density of water `= 1 × 10^3 kg `|

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Define

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What is the significance of Reynolds’s

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Give two areas where Bernoulli’s theorem is

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Water flows faster than honey.

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