MHT CET · Physics · Mechanical Properties of Fluids
A liquid drop having surface energy E is sprayed into 512 droplets of same size. The final surface energy is
- A 12 E
- B 4 E
- C 8 E
- D 6 E
Answer & Solution
Correct Answer
(C) 8 E
Step-by-step Solution
Detailed explanation
\( (4/3)\pi R^3 = 512 \times (4/3)\pi r^3 \Rightarrow R = 8r \) \( E = T \cdot 4\pi R^2 \)
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
- A potentiometer wire of length 1 m is connected in series with \(495 \Omega\) resistance and 2 V battery. If \(0.2 \mathrm{mV} / \mathrm{cm}\) is the potential gradient, then the resistance of the potentiometer wire isMHT CET 2024 Medium
- An electron revolving in circular orbit of radius 'r' with velocity 'V' and frequency 'v' has orbital magnetic moment 'M'. If the frequency of revolution is doubled then the new magnetic moment will beMHT CET 2020 Medium
- The variation of decay rate with number of active nuclei is correctly shown in graph
MHT CET 2020 Easy - Consider the Doppler effect in two cases. In the first case, an observer moves towards a stationary source of sound with a speed of \(50 \mathrm{~m} / \mathrm{s}\). In the second case, the observer is at rest and the source moves towards the observer with the same speed of \(50 \mathrm{~m} / \mathrm{s}\). Then the frequency heard by the observer will be [velocity of sound in air \(=330 \mathrm{~m} / \mathrm{s}\).]MHT CET 2023 Easy
- Resolving power of telescope increases whenMHT CET 2016 Easy
- The pressure exerted by an ideal gas at a particular temperature is directly proportional toMHT CET 2023 Easy
More PYQs from MHT CET
- The chromosome with centromere near the end is called ________ .MHT CET 2014 Easy
- What is the molal elevation constant if one gram mole of a nonvolatile solute is dissolved in \(1 \mathrm{~kg}\) of ethyl acetate? \(\left(\Delta \mathrm{T}_{\mathrm{b}}=x \mathrm{~K}\right)\)MHT CET 2023 Medium
- The r.m.s. velocity of hydrogen at S.T.P. is ' u ' \(\mathrm{m} / \mathrm{s}\). If the gas is heated at constant pressure till its volume becomes three times, then the final temperature of the gas and the r.m.s. speed are respectivelyMHT CET 2024 Easy
- An ester \((A)\) with molecular formula \(\mathrm{C}_{9} \mathrm{H}_{10} \mathrm{O}_{2}\) was treated with excess of \(\mathrm{CH}_{3} \mathrm{MgBr}\) and the complex so formed was treated with \(\mathrm{H}_{2} \mathrm{SO}_{4}\) to give an olefin \((B)\). Ozonolysis of \((B)\) gave \(a\) ketone with molecular formula \(\mathrm{C}_{8} \mathrm{H}_{8} \mathrm{O}\) which shows positive iodoform test. The structure of \((A)\) isMHT CET 2008 Medium
- Velocity of sound waves in air is \(330 \mathrm{~m} / \mathrm{s}\). For a particular sound wave in air, path difference of 40 cm is equivalent to phase difference of (1.6) \(\pi\). The frequency of this wave isMHT CET 2024 Medium
- If \(\tan ^{-1}(2 x)+\tan ^{-1}(3 x)=\frac{\pi}{4}\), where \(x>0\), then \(x=\)MHT CET 2021 Easy