Q. No.1. \(5\)
2. \(7\)
3. \(6\)
4. \(10\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \(200\) W
2. zero
3. \(100\) W
4. \(140\) W
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \(1\times 10^{5}\) J
2. \(36\times 10^{7}\) J
3. \(36\times 10^{4}\) J
4. \(36\times 10^{5}\) J
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology(Take \(g=10\) ms–2)
1. \(23500\)
2. \(23000\)
3. \(20000\)
4. \(34500\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWater falls from a height of 60 m at the rate of 15 kg/s to operate a turbine. The losses due to frictional force are 10% of the input energy. How much power is generated by the turbine?
| 1. | 12.3 kW | 2. | 7.0 kW |
| 3. | 10.2 kW | 4. | 8.1 kW |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology2. \(\left(2 t^3+3 t^3\right) \) W
3. \(\left(2 t^3+3 t^5\right)\) W
4. \(\left(2 t^3+3 t^4\right) \) W
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \( \sqrt{\frac{m k}{2}} t^{-1 / 2} \)
2. \( \sqrt{m k} t^{-1 / 2} \)
3. \( \sqrt{2 m k} t^{-1 / 2} \)
4. \( \frac{1}{2} \sqrt{m k} t^{-1 / 2}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA car of mass m starts from rest and accelerates so that the instantaneous power delivered to the car has a constant magnitude \(P_0\). The instantaneous velocity of this car is proportional to:
1. \(t^{\frac{1}{2}}\)
2. \(t^{\frac{-1}{2}}\)
3. \(\frac{t}{\sqrt{m}}\)
4. \(t^2 P_0\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn engine pumps water through a hose pipe. Water passes through the pipe and leaves it with a velocity of 2 ms-1. The mass per unit length of water in the pipe is What is the power of the engine?
1. 400 W
2. 200 W
3. 100 W
4. 800 W
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA particle of mass \(M\) starting from rest undergoes uniform acceleration. If the speed acquired in time \(T\) is \(V\), the power delivered to the particle is:
1. \(\frac{1}{2}\frac{MV^2}{T^2}\)
2. \(\frac{MV^2}{T^2}\)
3. \(\frac{1}{2}\frac{MV^2}{T}\)
4. \(\frac{MV^2}{T}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
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