The amount of energy required to form a soap bubble of radius \(2~\text{cm}\) from a soap solution is nearly:
\((\)surface tension of soap solution \(0.03~\text{Nm}^{-1})\)
1. \(50.1 \times 10^{-4}~\text{J}\)
2. \(30.16 \times 10^{-4}~ \text{J}\)
3. \(5.06 \times 10^{-4} ~\text{J}\)
4. \(3.01\times 10^{-4} ~\text{J}\)
Subtopic:  Surface Tension |
 56%
From NCERT
NEET - 2023
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If a soap bubble expands, the pressure inside the bubble:
1. is equal to the atmospheric pressure 2. decreases
3. increases 4. remains the same
Subtopic:  Surface Tension |
 68%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Air is pushed carefully into a soap bubble of radius \(r\) to double its radius. If the surface tension of the soap solution is \(T,\) then work done in the process is:

1. \(12\pi r^2T\) 2. \(24\pi r^2T\)
3. \(4\pi r^2T\) 4. \(8\pi r^2T\)
Subtopic:  Surface Tension |
 60%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

A liquid does not wet the solid surface if the angle of contact is:
1. equal to \(45^{\circ}\)
2. equal to \(60^{\circ}\)
3. greater then \(90^{\circ}\)
4. zero 

Subtopic:  Surface Tension |
 77%
From NCERT
NEET - 2020
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NEET 2023 - Target Batch - Aryan Raj Singh
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A soap bubble, having a radius of \(1~\text{mm}\), is blown from a detergent solution having a surface tension of\(2.5\times 10^{-2}~\text{N/m}\). The pressure inside the bubble equals at a point \(Z_0\) below the free surface of the water in a container. Taking \(g = 10~\text{m/s}^{2}\), the density of water \(= 10^{3}~\text{kg/m}^3\), the value of \(Z_0\) is:

1. \(0.5~\text{cm}\) 2. \(100~\text{cm}\)
3. \(10~\text{cm}\) 4. \(1~\text{cm}\)
Subtopic:  Surface Tension |
 55%
From NCERT
NEET - 2019
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh