GKFix MCQ Question

What is the significance of the term 'l_corrected = l - (1/3)r' in the volume calculation?

• A. It accounts for the thermal expansion of the glass tube
• B. It adjusts the measured length to account for the non-cylindrical end volume
• C. It compensates for the meniscus effect of the mercury
• D. It converts the length to standard temperature and pressure