Question

Filling the blanks of second pair using the relation of first pair

a) Hydraulic brake of vehicles : Pascal's Law: Hydrometer :

b) Velocity : m/s ;

Momentum .​

Answer 1

Answer:

mujhe question samajh me nahi aya.

Answer 2

Answer:

Hydrometer : Archimedes' principle

Momentum : kg m/s

Explanation :

• In (a), It is asking about the principle on which the hydrometer works. An example of hydraulic brakes of vehicles is given which works on the principle of Pascal's law.
• Likewise, Hydrometer is based on Archimedes' principle.
• Archimedes principle - According to Archimedes' principle, the weight of the fluid that the body displaces is equal to the upward buoyant force that is applied to a body submerged in a fluid, whether fully or partially.
• The 'Archimedes' principle' is a fundamental physical law in fluid mechanics.
• It was created by Syracuse's Archimedes.
• A tool is used to calculate specific gravity is called a hydrometer.
• It functions according to the Archimedes principle, which states that a solid thing that is floating in a liquid displaces it's weight.
• Liquids heavier than water and liquids lighter than water are the two broad categories into which hydrometers can be separated.
• In (b), It is asking for the units of Momentum, For example, the unit of velocity is m/s and unit of mass is kg.
• Hence, The unit of momentum is kg m/s, as momentum is the product of mass and velocity.

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