How will you measure the mass of an object which exceeds the mass of the triple beam balance?
The Correct Answer and Explanation is :
To measure the mass of an object that exceeds the capacity of a triple beam balance, you can use an alternative method, such as a digital scale with a higher capacity or use a hydrostatic weighing method. Here’s a more detailed explanation of these methods:
1. Using a Digital Scale:
A digital scale, especially those designed for industrial or laboratory purposes, typically has a higher weight capacity compared to a triple beam balance. These scales use load cells to measure the force exerted by the object due to gravity and then convert this force into a mass reading. Digital scales can typically handle objects that weigh much more than what a triple beam balance can measure.
To use a digital scale:
- First, ensure that the scale’s maximum capacity is higher than the object’s mass.
- Place the object on the scale.
- Wait for the digital display to stabilize and show the mass of the object. Digital scales are often more precise and provide faster results than a triple beam balance.
2. Hydrostatic Weighing:
If you don’t have access to a digital scale, hydrostatic weighing (also known as water displacement) can be a useful method, especially if the object can be submerged in water. The principle relies on Archimedes’ principle, which states that an object submerged in a fluid experiences an upward buoyant force equal to the weight of the fluid displaced by the object.
To use this method:
- Measure the volume of the water displaced by the object when fully submerged. This can be done using a graduated cylinder or overflow container.
- Calculate the weight of the water displaced (which will be equal to the buoyant force) and subtract it from the weight of the object measured in air to determine the object’s true weight. The mass can then be calculated from the weight using the acceleration due to gravity.
Conclusion:
When dealing with objects that exceed the capacity of a triple beam balance, digital scales offer a direct, efficient solution, while hydrostatic weighing is a more complex but effective method for certain scenarios.