In Jager's method, at the time of bursting of the bubble
In Jager's method, at the time of bursting of the bubble
- A
The internal pressure of the bubble is always greater than external pressure
- B
The internal pressure of the bubble is always equal to external pressure
- C
The internal pressure of the bubble is always less than external pressure
- D
The internal pressure of the bubble is always slightly greater than external pressure
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Two soap bubbles have different radii but their surface tension is the same. Mark the correct statement
Two soap bubbles have different radii but their surface tension is the same. Mark the correct statement
Two narrow bores of diameter $5.0\, {mm}$ and $8.0\, {mm}$ are joined together to form a $U-$shaped tube open at both ends. If this ${U}$-tube contains water, what is the difference in the level of two limbs of the tube.
[Take surface tension of water ${T}=7.3 \times 10^{-2} \, {Nm}^{-1}$, angle of contact $=0, {g}=10\, {ms}^{-2}$ and density of water $\left.=1.0 \times 10^{3} \,{kg} \,{m}^{-3}\right]$ (in $mm$)
Two narrow bores of diameter $5.0\, {mm}$ and $8.0\, {mm}$ are joined together to form a $U-$shaped tube open at both ends. If this ${U}$-tube contains water, what is the difference in the level of two limbs of the tube.
[Take surface tension of water ${T}=7.3 \times 10^{-2} \, {Nm}^{-1}$, angle of contact $=0, {g}=10\, {ms}^{-2}$ and density of water $\left.=1.0 \times 10^{3} \,{kg} \,{m}^{-3}\right]$ (in $mm$)
- [JEE MAIN 2021]
If a section of soap bubble (of radius $R$) through its center is considered, then force on one half due to surface tension is
If a section of soap bubble (of radius $R$) through its center is considered, then force on one half due to surface tension is
If the excess pressure inside a soap bubble is balanced by oil column of height $2\; mm$, then the surface tension of soap solution will be ($r = 1 \,cm$ and density $d = 0.8\, gm/cc$)
If the excess pressure inside a soap bubble is balanced by oil column of height $2\; mm$, then the surface tension of soap solution will be ($r = 1 \,cm$ and density $d = 0.8\, gm/cc$)