A glass cuboidal has dimensions 10gm × 10 cm × 4cm. it is ke...
Answer:
The buoyant force or upthrust is the force exerted by a fluid (liquid or gas) on an object submerged or floating in it. It is the force that opposes the weight of the object and acts in the upward direction. According to Archimedes' principle, an object will float if the upthrust acting on it is equal to or greater than its weight.
Weight of an Object:
The weight of an object is the force exerted on it due to gravity. It depends on the mass of the object and the acceleration due to gravity. Weight is measured in newtons (N).
Upthrust:
Upthrust is the force exerted by a fluid on an object immersed in it. It is equal to the weight of the fluid displaced by the object. Upthrust acts in the opposite direction to the force of gravity.
Equilibrium:
When the weight of an object is equal to the upthrust acting on it, the object is in a state of equilibrium. In this state, there is no net force acting on the object, and it remains at rest or moves with a constant velocity.
Float:
If the weight of an object is less than the upthrust acting on it, the object will float. This means that the upthrust is greater than the weight, causing the object to rise and remain partially or completely submerged in the fluid. The object will displace an amount of fluid equal to its own weight.
Sink:
If the weight of an object is greater than the upthrust acting on it, the object will sink. This means that the weight is greater than the upthrust, causing the object to descend and be fully submerged in the fluid. The object will displace an amount of fluid less than its own weight.
Therefore, if the weight of an object is equal to or less than the upthrust acting on it, the object will float. The upthrust will be greater than or equal to the weight, allowing the object to remain partially or completely submerged in the fluid.
A glass cuboidal has dimensions 10gm × 10 cm × 4cm. it is ke...
Rhe answer is option (c) increase
because when the area is small then the pressure exerted will be greater
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