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11th CBSE
IMPORTANT
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 Pressure is a scalar quantity. Give reason.

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Important Questions on Mechanical Properties of Fluids

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11th CBSE
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A wooden block with a coin placed on its top, floats in water as shown in figure. The distance l and h are shown in the figure. After some time the coin falls into the water. Which one of the following statement is correct?

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11th CBSE
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With increase in temperature, the viscosity of
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11th CBSE
IMPORTANT
Streamline flow is more likely for liquids with
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11th CBSE
IMPORTANT
 Is viscosity a vector quantity?
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11th CBSE
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 Is surface tension a vector quantity?
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11th CBSE
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Iceberg floats in water with part of it submerged. What is the fraction of the volume of iceberg submerged if the density of ice is ρi=0.917 gcm3?
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11th CBSE
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A vessel filled with water is kept on a weighing pan and the scale is adjusted to zero. A block of mass M and density ρ is suspended by a massless spring of spring constant k. This block is submerged inside into the water in the vessel. What is the reading of the scale?

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11th CBSE
IMPORTANT
A cubical block of density ρ is floating on the surface of water. Out of its height L, fraction x is submerged in water. The vessel is in an elevator accelerating upward with acceleration a . What is the fraction immersed?