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A barometer kept in an elevator accelera...

A barometer kept in an elevator accelerating upward reads 76 cm. The air pressure in the elevator is

A

76 cm

B

lt 76 cm

C

gt 76 cm

D

zero

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The correct Answer is:
C
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CP SINGH-FLUID MECHANICS-Exercises
  1. A beaker containing a liquid of density rho moves up with an accelerat...

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  2. The pressure in a liquid at two points in the same horizontal plane ar...

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  3. A barometer kept in an elevator accelerating upward reads 76 cm. The a...

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  4. A block of aluminium of mass 1 kg and volume 3.6 xx 10^-4 m^3 is suspe...

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  5. A closed cubical box is completely filled with water and is accelerate...

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  6. A U-tube containing a liquid is accelerated horizontally with a consta...

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  7. A sealed tank containing a liquid of density rho moves with horizontal...

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  8. The U-tube shown in the figure has a uniform cross section. A liquid i...

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  9. A vertical U-tube contains a liquid. The total length of the liquid co...

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  10. A solid sphere of density eta (gt 1) times lighter than water is suspe...

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  11. An iceberg of density 900kg//m^(3) is floating in water of density 100...

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  12. A body floats with one-third of its volume outside water and 3//4 of i...

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  13. A body weighs 50 g in air and 40 g in water. How much would it weigh i...

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  14. A raft of wood (density=600kg//m^(3)) of mass 120 kg floats in water. ...

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  15. A vessel contains oil (density =0.8gm//cm^3) over mercury (density =13...

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  16. A thin uniform cylindrical shell, closed at both ends, is partially fi...

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  17. A concrete sphere of radius R has cavity of radius r which is packed w...

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  18. A body of density d is counterpoised by Mg of weights of density d1 in...

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  19. A jar is filled with two non-mixing liquids 1 and 2 haivng densities r...

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  20. A solid is completely immersed in a liquid. The force exerted by the l...

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