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If water is ejecting from a hole of radi...

If water is ejecting from a hole of radius r at a depth h from the water surface in cylindrical vessel of diameter D, then speed with which the water level in the vessel drops .(Consider area of hole is comparable to area of vessel)

A

`(4r^2)/D^2sqrt(2gh)`

B

`(4r)/Dsqrt(2gh)`

C

`((4r^2)sqrt(2gh))/sqrt(D^4-16r^4)`

D

`((4r)sqrt(2gh))/sqrt(D^3-4r^2)`

Text Solution

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AAKASH INSTITUTE ENGLISH-TEST 1-EXERCISE
  1. If water is ejecting from a hole of radius r at a depth h from the wat...

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  2. If a diaelectric material of dielectric constantepsilonr is completely...

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  3. Two identical electric dipoles of dipole moments p are placed as shown...

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  4. Four point charges each of magnitude Q and mass m are moving on circul...

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  5. Positive charge is uniformly distrubuted with volume charge density rh...

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  6. A wire AMB is placed along y-axis having linear charge density lambda ...

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  7. Two identical point charges are placed at A and B. The potential diffe...

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  8. The magnitude electric potential difference between A and B for a give...

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  9. The uniform electric field is along positive y-axis positive x axis ...

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  10. A short electric dipole having dipole moment overline rho is placed a...

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  11. There are three conducting concentric spherical shells having charges ...

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  12. there are two concentric metallic shells of radii R and 2R, if outer ...

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  13. An uncharged metallic solid sphere of radius R is placed at a distance...

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  14. There are two concentric conducting spherical shells of radii 10 cm an...

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  15. A parallel plate capacitor (not connected with battery) have charge Q0...

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  16. An arrangement of five identical capacitors are shown in given circuit...

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  17. A parallel plate capacitor charged to potential difference V0 . The va...

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  18. The area of cross section of a uniform cylindrical conducting wire is ...

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  19. Which one of the following relations is incorrect ? ( Symbols have the...

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  20. If two conducting wires Aand B of same dimensions have electron densit...

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  21. A current carrying conductor is connected with a cell, after some time...

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