142807 A ring of radius $R$ is kept on water surface.
Surface tension of water is $T$ and mass is $\mathbf{m}$. What force required to lift the ring from water surface?

142808 A hemispherical bowl just floats without sinking in a liquid of density $1.2 \times 10^{3} \mathrm{~kg} / \mathrm{m}^{3}$. If outer diameter and the density of the bowl are $1 \mathrm{~m}$ and $2 \times 10^{4} \mathrm{~kg} / \mathrm{m}^{3}$ respectively, then the inner diameter of the bowl will be

142812 Work of 3.0 $\times 10^{-4}$ joule is required to be done in increasing the size of a soap film from $10 \mathrm{~cm} \times$ $6 \mathrm{~cm}$ to $10 \mathrm{~cm} \times 11 \mathrm{~cm}$. The surface tension of the film is

142816 A mercury drop of radius $1 \mathrm{~cm}$ is sprayed into $10^{6}$ drops of equal size. The energy expressed in joule is (surface tension of Mercury is $460 \times 10^{-3}$ $\mathbf{N} / \mathbf{m})$

142807 A ring of radius $R$ is kept on water surface.
Surface tension of water is $T$ and mass is $\mathbf{m}$. What force required to lift the ring from water surface?

142808 A hemispherical bowl just floats without sinking in a liquid of density $1.2 \times 10^{3} \mathrm{~kg} / \mathrm{m}^{3}$. If outer diameter and the density of the bowl are $1 \mathrm{~m}$ and $2 \times 10^{4} \mathrm{~kg} / \mathrm{m}^{3}$ respectively, then the inner diameter of the bowl will be

142812 Work of 3.0 $\times 10^{-4}$ joule is required to be done in increasing the size of a soap film from $10 \mathrm{~cm} \times$ $6 \mathrm{~cm}$ to $10 \mathrm{~cm} \times 11 \mathrm{~cm}$. The surface tension of the film is

142816 A mercury drop of radius $1 \mathrm{~cm}$ is sprayed into $10^{6}$ drops of equal size. The energy expressed in joule is (surface tension of Mercury is $460 \times 10^{-3}$ $\mathbf{N} / \mathbf{m})$

142807 A ring of radius $R$ is kept on water surface.
Surface tension of water is $T$ and mass is $\mathbf{m}$. What force required to lift the ring from water surface?

142808 A hemispherical bowl just floats without sinking in a liquid of density $1.2 \times 10^{3} \mathrm{~kg} / \mathrm{m}^{3}$. If outer diameter and the density of the bowl are $1 \mathrm{~m}$ and $2 \times 10^{4} \mathrm{~kg} / \mathrm{m}^{3}$ respectively, then the inner diameter of the bowl will be

142812 Work of 3.0 $\times 10^{-4}$ joule is required to be done in increasing the size of a soap film from $10 \mathrm{~cm} \times$ $6 \mathrm{~cm}$ to $10 \mathrm{~cm} \times 11 \mathrm{~cm}$. The surface tension of the film is

142816 A mercury drop of radius $1 \mathrm{~cm}$ is sprayed into $10^{6}$ drops of equal size. The energy expressed in joule is (surface tension of Mercury is $460 \times 10^{-3}$ $\mathbf{N} / \mathbf{m})$

142807 A ring of radius $R$ is kept on water surface.
Surface tension of water is $T$ and mass is $\mathbf{m}$. What force required to lift the ring from water surface?

142808 A hemispherical bowl just floats without sinking in a liquid of density $1.2 \times 10^{3} \mathrm{~kg} / \mathrm{m}^{3}$. If outer diameter and the density of the bowl are $1 \mathrm{~m}$ and $2 \times 10^{4} \mathrm{~kg} / \mathrm{m}^{3}$ respectively, then the inner diameter of the bowl will be

142812 Work of 3.0 $\times 10^{-4}$ joule is required to be done in increasing the size of a soap film from $10 \mathrm{~cm} \times$ $6 \mathrm{~cm}$ to $10 \mathrm{~cm} \times 11 \mathrm{~cm}$. The surface tension of the film is

142816 A mercury drop of radius $1 \mathrm{~cm}$ is sprayed into $10^{6}$ drops of equal size. The energy expressed in joule is (surface tension of Mercury is $460 \times 10^{-3}$ $\mathbf{N} / \mathbf{m})$