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An Ibex Sciences Mirror Strip Holder is a simple physics laboratory tool used to support a flat mirror strip during light reflection experiments. It keeps the mirror standing vertically so students can trace light rays accurately. [1]
Key Product Features & Build
- Material Composition: Typically crafted from a solid block of seasoned hardwood or durable high-density rubber to ensure a heavy, non-slip base. [1, 2]
- Precision Groove: Features a narrow vertical slot (or horizontal option) cut straight through the top center to slide the glass mirror strip into place. [1]
- Cork Lining: The interior of the slot is often lined with soft cork or rubber padding to grip the glass securely without cracking or scratching it. [1]
- Standard Cube Sizing: Commonly shaped as a compact 50mm (2-inch) cube, providing a balanced, weighted base that will not easily tip over on a flat table. [1]
Core Laboratory Functions
- Light Reflection Tracking: Holds a plane mirror vertically upright on a drawing board so students can trace incident rays and reflected rays with board pins.
- Verifying Reflection Laws: Helps students accurately measure and prove that the angle of incidence equals the angle of reflection (\(\angle i = \angle r\)).
- Lateral Inversion Demos: Stabilizes the mirror while demonstrating how an object’s left side appears on the right side of the image. [1]
Care and Maintenance
- Avoid Water Logging: Keep the wooden holder dry. Water can warp the wood and close or expand the pre-cut glass groove.
- Gentle Insertion: Gently slide mirror strips straight down into the block. Forcing a thick glass strip can split the wooden base or snap the glass.
- Dry Storage: Store them in dry, covered plastic bins to prevent moisture buildup in the cork lining. [1, 2, 3]
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