Key relationship
Vsolid=Vafter−Vbefore.
Physics · Practical apparatus
Irregular solid displacement volume
Use a graduated cylinder to measure a fully submerged irregular solid or lamina. The difference removes a common additive zero error; two rounded readings still contribute resolution uncertainty.
Open the interactive experiment →Irregular solid displacement volume
முழுவதும் மூழ்கிய பொருளின் கனஅளவு இறுதி நீரளவு கழித்த ஆரம்ப நீரளவு. ஒரே பூஜ்யப் பிழை ரத்தாகும்.
Key notes, relationships and model limits
Practical tip
Use a graduated cylinder to measure a fully submerged irregular solid or lamina. The difference removes a common additive zero error; two rounded readings still contribute resolution uncertainty.
Common trap
Use the difference between final and initial liquid readings. Air bubbles or incomplete immersion change the displaced volume.
Model limits
water displacement volume only. Solid is nonporous, insoluble and completely submerged; no trapped air or overflow.
What you will learn
Adjust irregular solid displacement volume apparatus, observe its reading and derive the indicated physical quantity.
Try the experiment
Try both scenarios, change one control, and predict the result before checking the graph and readouts.
Think of it this way
Change one input while keeping the others fixed, as you would in a controlled experiment.
Worked example
70−50=20 mL. With 1 mL divisions the worst-case difference bound is ±1 mL.
Why this matters
The model connects irregular solid displacement volume with an observable reading. Check the equation and assumptions before applying it.
Before you start
SI units · algebra · graph reading
Check your understanding
Cylinder readings are 50 and 70 mL. Solid volume?
- 70 mL.
- 20 mL.
- 120 mL.
Read the explanation
20 mL.
Course connection: Virtual apparatus preparation. Check exact board/exam membership in the syllabus sources. Physical practical work remains necessary.