He-ne Laser Kit

He Ne LASER KIT

Experiment

Exp-1 To demonstrate that light spreads when it passes through a narrow aperture.
Exp-2 To observe the diffraction patterns by holes, single slit and double slit, mesh, grating.
Exp-3 To demonstrate Young's fringes.
Exp-4 To demonstrate Fresnel's diffraction.
Exp-5 To measure wavelength of light using a millimeter scale as a grating.
Exp-6 To demonstrate fringes of equal inclination

Principle and Working :
Diffraction phenomenon of light cab be observed when a laser beam passes through a slit or grating. The diffraction pattern can be observed on a translucent screen.
In the present setup single slit, double slit, multiple slit, single tapered slit, fine grating, holes, circular opaque spot, gray filter, mesh and coarse grating are used for diffraction experiment with a he-ne laser.

Contents:

Optical bench
He-Ne laser
Screen (30 x 30 cm)
Set of 13 objects
Diffraction slides
Slit holder
Glass scale
Slit (Blade)
Measuring tape (3 m)
Clip
-10cm concave lens in holder
-5cm concave lens in holder
+10cm convex lens in holder
+20cm convex lens in holder
Prism table
Cylindrical base