Diffraction Gratings with Holder
Product Code : LSK-PL-10353
Diffraction Gratings with Holder (SKU LSK-PL-10353) is a set of three gratings with 100, 300 and 600 lines/mm, each mounted between glass plates, used to split light into its component wavelengths. It serves wave-optics demonstrations in senior secondary physics and spectrum practicals in undergraduate labs. The set is produced by Science Lab Supplies in its own factory at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and sold directly to schools, colleges, tender contractors and distributors.
Specifications
Each of the three gratings is a 20 × 10 mm micro-grooved glass plate protected between glass plates, with a clear viewing area of 15 × 10 mm. Rulings of 100, 300 and 600 lines per millimetre give line spacings of roughly 10, 3.3 and 1.7 µm, so one set shows how line density changes a spectrum.
| Parameter | Value |
|---|---|
| SKU | LSK-PL-10353 |
| Number of gratings | 3 |
| Line densities | 100, 300 and 600 lines/mm |
| Line spacing (calculated) | Approx. 10 µm, 3.3 µm and 1.7 µm |
| Grating size | 20 × 10 mm each |
| Viewing area | 15 × 10 mm each |
| Construction | Micro-grooved glass grating mounted between glass plates |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Diffraction Gratings
Students see a continuous spectrum from white light and separate lines from a discharge lamp, then find wavelength from d sin θ = nλ. They support the wave-optics chapter of NCERT Class 12 physics and grating practicals in B.Sc. optics laboratories.
- Class 12 physics (CBSE/NCERT wave optics): showing diffraction of light and the formation of spectral orders.
- B.Sc. physics practical: determining the wavelength of spectral lines with a grating on a spectrometer.
- Comparing the three rulings: the finer the spacing, the wider the angle between colours in each order.
Standard Scope of Supply
The set comprises three gratings of 100, 300 and 600 lines/mm, each 20 × 10 mm and mounted between glass plates, together with the holder named in the product title. A light source, slit or spectrometer, where your experiment needs one, is quoted as a separate item.
Packing, MOQ and Lead Time
Ask for a quotation for one set or enough sets for a whole optics lab; every quotation lists the packing, delivery time and price for that quantity. Spectral tubes, a light source and other physics lab equipment in India can be priced on it too.
Holding an Importer-Exporter Code as a registered exporter, Science Lab Supplies is able to ship to buyers in Rwanda, South Africa, Qatar, Sri Lanka, Vietnam and Malaysia. To enquire, write through the contact page or add the item to the enquiry cart; tender buyers can also check the lab tender page.
Frequently Asked Questions
Why does the set include three different line densities?
Each ruling spreads the spectrum by a different amount. The 100 lines/mm grating gives the narrowest spread; the 300 and 600 lines/mm gratings send each colour out at wider angles, so readings separate more clearly.
What size is each grating?
Each grating is 20 × 10 mm, mounted between glass plates, with a clear viewing area of 15 × 10 mm.
Does Science Lab Supplies make these gratings itself?
Yes, it is the manufacturer, not a trader. The set is produced at the company's factory in Saha, Ambala, India, and your quotation is issued by that factory.
Are gratings with other line densities available?
This listing covers the 100, 300 and 600 lines/mm set. For a different ruling, send your requirement through the contact page and the team will confirm what can be quoted.
Related Optics and Spectra Equipment
A grating experiment needs light to analyse and often leads on to polarisation. These four items from the same physics range supply the light source, gas spectra to observe and a wider wave-optics kit, and can share one quotation with the gratings.
- Spectral Tubes — capillary gas tubes for observing line and band spectra.
- Parallel Beam Light Source — lamp giving a bright, straight beam.
- Optics Set OW1, Wave Optics — cased set built around 14 wave-optics experiments.
- Polarizing Filters — linear polarisers in 35 mm square frames.
Browse the full Physics Lab range or all physics lab equipment.
Last updated: 25 September 2026
