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 for spectrum analysis. It suits wave-optics demonstrations in senior secondary physics and spectrum practicals in undergraduate labs. The gratings and holder are manufactured by Science Lab Supplies at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and that factory issues quotations directly to schools, colleges, tender contractors and distributors.
Specifications
Rulings, sizes and construction of the three-grating set are listed one per row. In short, each grating is a 20 x 10 mm micro-grooved glass plate protected between glass plates, with a clear viewing area of 15 x 10 mm, and the rulings of 100, 300 and 600 lines per millimetre show how line density changes a spectrum.
| Specification | 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 x 10 mm each |
| Viewing area | 15 x 10 mm each |
| Grating element | Micro-grooved glass plate |
| Mounting | Between glass plates |
| Holder | Protective frame, card mount or laboratory stand |
| Function | Splits light into component wavelengths |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Diffraction Gratings
Through a grating, students can see a continuous spectrum from white light and separate lines from a discharge lamp, then find wavelength from d sin θ = nλ. The set supports 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, alongside interference rings on the Newton's Ring Apparatus.
- B.Sc. physics practical: determining the wavelength of spectral lines with a grating on a Laboratory 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 x 10 mm and mounted between glass plates, together with the holder. A light source, slit or spectrometer, where your experiment needs one, can be added as a separate line on the same quotation.
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. Grating sets for each optics bench can be requested in a note on the contact page or collected in the enquiry cart; the lab tender page serves buyers working to a published tender.
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 x 10 mm, mounted between glass plates, with a clear viewing area of 15 x 10 mm, so a narrow beam or slit image can pass through the ruled area.
Does Science Lab Supplies make these gratings itself?
Yes. The grating set and its holder leave the company’s own factory in Saha, Ambala, India, so you buy from the manufacturer and the quotation is prepared there, not by a trader.
Are gratings with other line densities available?
This set holds the 100, 300 and 600 lines/mm rulings. 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 can lead on to interference and polarisation. These Physics Lab and Light and Optics items supply the light source, gas spectra to observe, a dispersing prism and wider wave-optics kits, and any of them can share one quotation with the gratings.
- Spectral Tubes — straight tubes of noble and diatomic gases, about 220 mm long.
- Parallel Beam Light Source — 50 W halogen lamp with focus adjustment and a 10 mm mounting tap.
- Spectrometer Prism Separates Light — equilateral prism for dispersion and wavelength analysis.
- Diffraction and Interference Study Kit — teacher’s model with a 650 nm laser and ringed slit tokens.
- Apparatus for Studying Interference and Diffraction — laser diode, optical bank and screen.
- Optics Set OW1, Wave Optics — cased set built around 14 wave-optics experiments.
- Polarizing Filters — linear polarisers in 35 mm square frames, for VIS and NIR.
Browse the full Physics Lab range, the Light and Optics range, or all physics lab equipment.
Last updated: 22 October 2026
 (1).png)
