- 1(current)
Q. No.(density of water \(=10^3~\text{kg/m}^3\) and viscosity of water \(=10^{-3}~\text{Pa.s}) \)
1. \(11,000\)
2. \(550\)
3. \(1100\)
4. \(5500\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWater from a pipe is coming at a rate of 100 liters per minute. If the radius of the pipe is 5 cm, the Reynolds number for the flow is of the order of- (density of water = 1000 kg/, coefficient of viscosity of water = 1 m Pa s)
1.
2.
3.
4. 10
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA solid sphere, of radius \(R,\) acquires a terminal velocity \(v_1\) when falling (due to gravity) through a viscous fluid having a coefficient of viscosity \(\eta.\) The sphere is broken into \(27\) identical solid spheres. If each of these spheres acquires a terminal velocity, \(v_2\), when falling through the same fluid, the ratio \(\left(\dfrac{v_1}{v_2}\right) \) equals:
1. \(\dfrac{1}{9}\)
2. \(\dfrac{1}{27}\)
3. \(9\)
4. \(27\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology(coefficient of viscosity of water is \(10^{-2}~\text {Pa-s}\) )
1. \(100~\text m\)
2. \(200~\text m\)
3. \(300~\text m\)
4. \(400~\text m\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 1. | \(\dfrac{mg}{6\pi rv_0}\left(1-\dfrac{\rho_0}{\rho}\right)\) | 2. | \(\dfrac{mg}{6\pi rv_0}\left(1+\dfrac{\rho_0}{\rho}\right)\) |
| 3. | \(\dfrac{mg}{3\pi rv_0}\left(1+\dfrac{\rho_0}{\rho}\right)\) | 4. | \(\dfrac{mg}{3\pi rv_0}\left(1-\dfrac{\rho_0}{\rho}\right)\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \(10\times (6)^{1/3}\) m/s
2. \(10\times (6)^{2/3}\) m/s
3. \(5\times (3)^{2/3}\) m/s
4. \(10\times (6)^{3}\) m/s
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 1. | Air |
| 2. | Liquid |
| 3. | Both have the same viscosity |
| 4. | None of these |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \(4\pi R^2T \)
2. \(3\pi R^2T\)
3. \(8\pi R^2T\)
4. \(\frac{1}{8}\pi R^2T\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \(\mathrm{mg}\left(\frac{\rho_0}{\rho}-1\right)\)
2. \(\mathrm{mg}\left(1-\rho \rho_0\right)\)
3. \(\mathrm{mg}\left(1+\frac{\rho}{\rho_0}\right)\)
4. \(\mathrm{mg}\left(1-\frac{\rho_0}{\rho}\right)\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPrefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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