Description:
• For demonstrating the principle of the diffraction grating and the way in which its properties are dependent upon the number of lines per unit length.
• Comprises a card mount 90 x 40 mm approximately with three 16 x 9 mm apertures.
• Each containing a diffraction grating replica.
• The grating are of 100 lines / mm, 300 lines / mm and 600 lines /mm respectively and protected cover glasses.
Product Code :- CLM/PHY/LO-0141

Description:
• Three ranges 100, 2,000 and 20,000 Lux. Economical cost Sensor meet C.I.E. Photopic spectrum professional quality, Separate probe.
Product Code :- CLM/PHY/LO-0142

Description:
•  Supplied with two polaroids (one used as polariser and other as analyser.), A Laurant’s half shade device and 20 cm long observation tube glass. • The polariser and half shade are fixed at one end.
• The analyser at the other end which can be rotated along a circular graduated scale 0-360º.
• With a vernier reading to 6 min., a fine motion tangent screw is provided for fine adjustment.
Product Code :- CLM/PHY/LO-0143

Description:
• 80 Watts, operates on 220 Volt 50 Hz .
Product Code :- CLM/PHY/LO-0144

Description:
• For use mercury bulb. • Housed in sheet steel case.
• Supplied with 4 colour fillters Red, Blue, Green, Yellow and a diffuser.
• Operates on 220 volts 50 Hz.
Product Code :- CLM/PHY/LO-0145

Description:
•  Block comprising two pieces of polythene approx. 25 mm square 10 mm thick separated by tin foil.
• On wooden stand and aperture 12 mm diameter
Product Code :- CLM/PHY/LO-0146

Description:
• Made of brass and best quality.
Product Code :- CLM/PHY/LO-0147

Description:
• Used to eliminate extraneous light from the lamphouses, they are provided as a right and left handed pair of metal, in open-ended cylindrical form, open length-wise to pass over the lamphouse boss and with a slot at one end 7.5 X 1.5cm. to permit the light to pass. Finished in matt black, dimensions 15 cm. height and 7 cm. dia.
Product Code :- CLM/PHY/LO-0148

Description:
• A metal plate 7.5 x 7.5 cm. with a single slit 1.5 mm. wide x 28 mm.
• Long cut into one edge and three slits of the same size on 10 mm.
• Centres cut into the opposite edge. Finished in matt black.
Product Code :- CLM/PHY/LO-0149

Description:
• A metal plate 7.5 X 7.5 cm.
• With slits 1 mm. wide x 28 mm. long on 4 mm.
• Centers cut into one edge.
• Finished in matt black.
Product Code :- CLM/PHY/LO-0150

Description:
• A wooden block, triangular in section with a spring slip, to hold the slit plates, attached to one face.
• Finished in matt black.
• Size 40 x 40 x 55 mm.
• Section x 75 mm. long.
Product Code :- CLM/PHY/LO-0151