COMEDK · Physics · 11. Mechanical Properties of Fluids
With the addition of impurities, surface tension of a liquid
- A increases
- B decreases
- C remains constant
- D may increase or decrease depending on impurities
Answer & Solution
Correct Answer
(D) may increase or decrease depending on impurities
Step-by-step Solution
Detailed explanation
The addition of impurities in a liquid may increase or decrease the surface tension of liquid depending on the nature of impurities. If the impurities are highly soluble in liquid, then it will increase the surface tension. But if it is less soluble in liquid, then it will…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- If \(\alpha, \beta\) and \(\gamma\) are the angles between the vectors \(\overrightarrow{\mathrm{P}}, \overrightarrow{\mathrm{Q}}\), and \(\overrightarrow{\mathrm{R}}\) and \(\alpha=90^{\circ}\) as shown in figure. the product of \((\vec{Q} \times \vec{R}) \cdot \vec{Q}\) is equal to
COMEDK 2024 Easy - An electron is moving along positive \(X\)-axis. To get it moving on an anti-clockwise circular path in \(X-Y\)-plane, a magnetic field is appliedCOMEDK 2024 Easy
- Two co-axial lenses of power \(+4 \mathrm{D}\) and \(-2 \mathrm{D}\) are placed in contact. The focal length of combination isCOMEDK 2016 Medium
- An open pipe is in second harmonic with frequency \(f_1\). One end of the tube is closed and frequency is increased to \(f_2\) and it resonates again with nth harmonic. For what value of n , the ratio of \(\dfrac{f_1}{f_2}\) is \(\dfrac{4}{5}\) ?COMEDK 2025 Medium
- A given volume of gas at NTP is allowed to expand 6 times of its original volume, first under isothermal condition and then under adiabatic condition. Which of the given statement is correct?
[Given \(\dfrac{C_p}{C_v}=\gamma=1.4\) ]COMEDK 2025 Medium -

In the given circuit, an ideal voltmeter connected across \(6\Omega\) reads 5V. The internal resistance r of each cell is:COMEDK 2026 Medium
More PYQs from COMEDK
- Which of the following are monosaccharides?COMEDK 2015 Easy
- The value of \(\int_{-2}^{2}\left(a x^{3}+b x+c\right) d x\) depends on theCOMEDK 2018 Easy
- If \(\sin A+\sin B=-\dfrac{21}{65}, \cos A+\cos B=-\dfrac{27}{65}\) and \(\pi < A-B < 3 \pi\), then the value of \(\cos \left(\dfrac{A-B}{2}\right)\) isCOMEDK 2025 Medium
- Identify the correct statementCOMEDK 2026 Medium
- What is the final product formed when Toluene undergoes the following series of reactions?
COMEDK 2024 Medium - Which of the following is not a characteristic of chemisorption?COMEDK 2013 Easy