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Brand: COMETEK
Cometek 100mm Focal Length Double Concave Lens Pack of 4 Optically Worked Glass Physics Lab Refraction
SKU: TB-CO-74256
Estimated Delivery By: Jul 14 - Jul 16 




MRP : ₹295 ₹279
5% OFF!
Estimated Delivery By: Jul 14 - Jul 16 
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₹279 (Including GST)
MRP : ₹295
5% OFF!
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Short Description
True Optical Glass Construction
Double Concave Diverging Profile
Finely Ground Safety Edges
Double Concave Diverging Profile
Finely Ground Safety Edges
Country of origin: India
Specifications
- Brand: COMETEK
- Quantity: Set of 4 Lens pieces
- Lens Diameter: 2" (50mm)
- Focal Length: 100mm
- Lens Configuration: Double Concave (Diverging)
- Material Composition: Glass
Description
The Cometek 100mm Focal Length Double Concave Lens Set is a foundational physics apparatus designed for highly accurate optical exploration. Available in a practical pack of four, each circular lens measures 2" (50mm) in diameter and is shaped from premium optically worked glass. Featuring two inwardly curved spherical surfaces, these biconcave lenses act as precise diverging elements that spread passing light rays to illustrate focal points and virtual image creation. The optical glass surfaces undergo a thorough polishing process to guarantee excellent light transmission and performance during critical ray-box tracking. Finished with uniform ground edges to keep hands protected from sharpness, this reusable 4-piece kit is an essential asset for middle school, high school, and college science classrooms studying geometric optics and refraction.
Features
:- Biconcave Spherical Shape: Perfectly matched dual concave faces cause parallel incoming light beams to diverge outward uniformly.
- Optically True Clarity: High-grade glass construction ensures minimal aberration, producing crisp focus properties on observation screens.
- Safe Handling Profile: Perimeter rim boundaries are masterfully ground down to eliminate sharp edges while preserving structural diameter integrity.
- Four-Piece Bulk Pack: Multi-item bundle makes it straightforward to distribute individual components across multiple student lab groups or benches.
Applications
:- Demonstrating light ray divergence, optical trace diagrams, focal point metrics, and correction characteristics.
- Running quantified experiments on an optical bench tracking ray behavior across differing lens mediums.
- Providing true glass elements for students constructing basic experimental projector sets, beam expanders, or optical kits.

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