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Concave Mirror
Concave Mirror (Product Code: SCL-394/095) is a round converging mirror used to form real images and measure focal length in school and college physics practicals. The 50 mm diameter mirror is available in 15 cm and 25 cm focal lengths and is made of spherical, optically worked glass with ground edges and a highly polished face. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Mirror type | Concave (converging), spherical |
| Diameter | 50 mm |
| Focal length options | 15 cm; 25 cm |
| Shape | Round |
| Glass | Optically worked, highly polished |
| Edge finish | Ground |
| Listed properties | Chemical resistant, heat resistant |
| Product code | SCL-394/095 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is a Concave Mirror Used For?
Students first estimate the focal length by focusing the image of a distant window onto a screen and measuring the distance to the mirror. They then find it accurately by the u–v method on an optics bench, as practised in Indian schools, removing parallax between the real image and a needle and plotting the results.
The mirror also shows how the image changes as the object moves: real and inverted beyond the focus, enlarged and erect inside it — the principle behind shaving mirrors and torch reflectors. Because it concentrates light, never point it at the Sun, and hold it by the ground edges to keep the polished face clean.
What to Specify When Ordering
- Which focal length you need: 15 cm or 25 cm.
- The quantity required in each focal length.
- Whether an optical bench or mirror mounting should be quoted with the mirrors.
OEM Manufacturer
Jain Scientific Equipments Private Limited trades as ScienceLab and makes this Concave Mirror as the OEM at its own licensed factory in Saha, Ambala, Haryana, India, so buyers deal with the maker for quotations, repeat quantities and mixed focal-length orders. The company is registered as an MSME enterprise under Udyam number UDYAM-HR-01-0003714 and holds Importer-Exporter Code AAECJ8618A from the DGFT for export consignments. See the company profile for details.
Related Physics Lab Equipment
Apparatus used with the concave mirror in optics practicals:
- Optical Bench with 3 Stands — the graduated bench for u–v measurements.
- Convex Mirror — the diverging counterpart for comparing image types.
- Convex Lens — a converging lens studied with the same u–v method.
- Meter Scale 100 cm — measures the mirror-to-screen distance in the quick estimate.
- Mirror, Concave — an alternative concave mirror from the physics equipment range.
More optics apparatus is available in the Physics Lab category.
Frequently Asked Questions
What focal lengths does the Concave Mirror come in?
The Concave Mirror comes in two focal lengths, 15 cm and 25 cm, each on a 50 mm diameter mirror. The shorter focal length keeps every reading well inside a one-metre optical bench, while the longer one spreads readings out for easier measurement.
How do students find the focal length of the Concave Mirror?
For a quick estimate, focus the image of a distant window onto a screen with the Concave Mirror and measure the mirror-to-screen distance. For an accurate value, use the u–v method on an optical bench, removing parallax between the image and a needle.
What images can the Concave Mirror form?
The Concave Mirror forms real, inverted images when the object is beyond its focus, and these can be caught on a screen. With the object between the focus and the mirror, it gives an enlarged, erect virtual image, as in a shaving mirror.
What is the Concave Mirror made of?
The Concave Mirror is made of spherical, optically worked glass with ground edges and a highly polished surface, in a round shape. It is listed as chemical and heat resistant, although the polished face should still be protected from scratches.
Is it safe to use the Concave Mirror in sunlight?
Take care when using the Concave Mirror outdoors, because it concentrates light at its focus and can burn skin or paper. Never let students look at the Sun in the mirror, and use a distant building or window as the object for focal-length estimates.
Who manufactures the Concave Mirror?
The Concave Mirror is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab) as the OEM at its own factory in Saha, Ambala, Haryana, India. It is supplied factory-direct to schools, colleges, dealers and importers in India and international markets.
Request a Quote
For a Concave Mirror quotation, give the focal length and quantity through the contact page or add it to the enquiry cart. Quotations come direct from the manufacturer.
Last updated: 24 September 2026
