Which of the following is the best practice for storing a compound light microscope?

• A. Cover the microscope with a dust cover, place it on a stable surface, and store it with the objective lenses facing down.
• B. Store the microscope with the stage lowered, objective lenses in the lowest power position, and cover it with a dust cover.
• C. Leave the microscope uncovered, with the stage raised and the light source turned on.
• D. Store the microscope in a humid environment to prevent drying of lenses.

Answer: (B)

Verified step by step guidance

1. Understand the importance of proper microscope storage to maintain its functionality and longevity.
2. Recognize that lowering the stage prevents accidental damage to the lenses or slides when the microscope is stored.
3. Know that setting the objective lenses to the lowest power position protects the lenses from damage and reduces the risk of dust accumulation on higher power lenses.
4. Covering the microscope with a dust cover prevents dust and debris from settling on the optical components, which can impair image quality.
5. Avoid storing the microscope in a humid environment, as moisture can cause corrosion and damage to mechanical and optical parts.