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Questions and Answers
What happens to a floating boat carrying stones if some stones are unloaded into the water?
What happens to a floating boat carrying stones if some stones are unloaded into the water?
- Falls
- Rises till half the number of stones are unloaded and the begins to fall
- Rises (correct)
- Remains unchanged
According to the image, what is the velocity $v$ of the fluid?
According to the image, what is the velocity $v$ of the fluid?
- 2.25 m/s
- 1.0 m/s
- 1.5 m/s (correct)
- 3.0 m/s
Bernoulli's principle is NOT involved in the working of which of the following?
Bernoulli's principle is NOT involved in the working of which of the following?
- Carburetor of automobile
- Heart attack
- Blades of a kitchen mixer (correct)
- Movement of spinning ball
If water is flowing through a horizontal pipe with a non-uniform cross-section, what will the water have at the narrow portion?
If water is flowing through a horizontal pipe with a non-uniform cross-section, what will the water have at the narrow portion?
A cube floats in water with 1/3rd of its parts outside the surface. If it floats in a liquid with 3/4th part outside, what is the density of the liquid?
A cube floats in water with 1/3rd of its parts outside the surface. If it floats in a liquid with 3/4th part outside, what is the density of the liquid?
The height of a mercury barometer is 75 cm at sea level and 50 cm at the top of a hill. The ratio of the density of mercury to that of air is $10^4$. What is the height of the hill?
The height of a mercury barometer is 75 cm at sea level and 50 cm at the top of a hill. The ratio of the density of mercury to that of air is $10^4$. What is the height of the hill?
A block of steel of size 5 cm x 5 cm x 5 cm is weighed in water. If the relative density of steel is 7, what is its apparent weight?
A block of steel of size 5 cm x 5 cm x 5 cm is weighed in water. If the relative density of steel is 7, what is its apparent weight?
A liquid of density ρ is filled in a U-tube and accelerated with acceleration a, creating heights $h_1$ and $h_2$ in the vertical arms. If the horizontal arm's length is $l$, the acceleration a is:
A liquid of density ρ is filled in a U-tube and accelerated with acceleration a, creating heights $h_1$ and $h_2$ in the vertical arms. If the horizontal arm's length is $l$, the acceleration a is:
In the figure, what is the velocity $V_3$?
In the figure, what is the velocity $V_3$?
A thin uniform cylindrical shell, closed at both ends, is partially filled with water and floats vertically in water in a half-submerged state. If $\rho_c$ is the relative density of the material of the shell with respect to water, which is correct?
A thin uniform cylindrical shell, closed at both ends, is partially filled with water and floats vertically in water in a half-submerged state. If $\rho_c$ is the relative density of the material of the shell with respect to water, which is correct?
Flashcards
Pressure Formula in Fluid
Pressure Formula in Fluid
Pressure at depth h in a liquid where (P_0) is atmospheric pressure, (\rho) is density, and g is gravity.
Fluid flow in non-uniform pipe
Fluid flow in non-uniform pipe
At the narrower portion of a horizontal pipe, water has maximum speed and least pressure due to the continuity equation and Bernoulli's principle.
Bernoulli's Principle
Bernoulli's Principle
Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure.
Net Horizontal Force
Net Horizontal Force
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Height of water jet
Height of water jet
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Specific Gravity of oil
Specific Gravity of oil
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Study Notes
- The provided text contains multiple-choice questions related to the bulk properties of liquids, designed for NEET 2025 exam preparation
Key Concepts and Formulas
- Relative density of a floating object determines how much of it is submerged
- Acceleration and fluid dynamics are related, impacting liquid behavior in containers
- Extension of wires under tension depends on material densities
- Pressure increases with depth in a fluid
Fluid Flow
- The velocity of an incompressible fluid changes based on the tube's cross-sectional area
- Water velocity varies at different points in a non-uniform pipe
- Bernoulli's principle does not explain the function of kitchen mixers
- Liquid acceleration in a U-tube is related to the height difference in the liquid columns
Buoyancy, Thrust, and Floating Objects
- The height a ball will jump out of the water depends on the density of the ball and liquid
- Net horizontal force on a tank due to liquid outflow from holes is proportional to height differences
- Thrust on a submerged triangular lamina is a function of area, height, and liquid density
- Apparent weight of an object submerged in water depends on its relative density
Applications and Scenarios
- Water level changes in connected sections depend on fluid dynamics, related to pressure and speed
- The square of the speed of liquid coming out from an orifice can be used to estimate the height of the jet of water
- Unloading stones from a boat affects the water level, with quantity unloaded affecting the overall volume
- An airplane's lift relies on principles described in fluid dyanmics which can be described using Bernoulli's principle.
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