Question

Statement1: Level of mercury should be along the line of sight to avoid parallax error
Statement 2: Mercury is a toxic substance.

• A. Statement 2 is correct but statement 1 is incorrect
• B. Both statements are correct
• C. Both statements are incorrect
• D. Statement 1 is correct but statement 2 is incorrect

Answer 1

The correct option is B Both statements are correct

Precautions to take when using a thermometer:
To avoid parallax error, the mercury level should be along the sight. If we make a parallax error, the reading will invariably be wrong.
Mercury is a highly poisonous chemical. It is not recommended that humans inhale it. It has the potential to harm or even kill the person who consumes it.