Experiments:
1. Passage of light through a narrow aperture.
2. Observation of diffraction patterns from apertures, single and double slits, grids, grids, mesh, opaque spots.
3. Demonstration of Young’s bands.
4. Demonstration of Fresnel diffraction.
5. Measuring the wavelength of light using a millimeter scale as a grating.
6. Demonstration of strips with the same slope.
Essential Features:
– HeNe laser with integrated power supply.
– Translucent screen for viewing the diffraction pattern.
– A hexagonal optical bench with a lock.
He-Ne laser
Wavelength: 632.8 nm
Operating current: 4 mA ~ 6 mA
Output power:> 2 mW
Working time: > 8 hours.
Operating voltage: 220 V AC, 50 Hz
Input power: <2 W
Size (LxWxH): 300x62x82 mm
Weight: 1.5 kg (approx.)
Optical bench
Material: aluminum alloy
Type: Hexagon
Scale: 0-100 cm
Step: 1 mm
Comes with 4 fixed saddles.
Set of items:
one slot,
double slot,
3 slots,
4 slots,
5 slots,
one conical slot,
fine grid,
4 holes,
a round opaque spot,
gray filter,
grid,
coarse grating and mesh.
Frame size : 50 mm x 50 mm
Round base stand
Disc: Diameter 75 mm.
Stem: 10 mm in diameter.
Screen
Material: translucent, acrylic.
Size: 300 x 300 mm
Stem: 10 mm in diameter
Cylindrical base
Material: iron
Mounting options: rods 10-14 mm diameter / Flat objects up to 10 mm
Sliding object groove: 30×10 mm (LxW)
Aperture holder
Transparent aperture: 45×45 mm
Object holder: Clamp type
Mounting rod: diameter 10 mm