Malu’s Law of polarization using Laser

a) Optical bench:

Aluminium alloy rail of length 1 m

Uprights: Free movement sliders on rail - 4 Nos

Laser: 625 nm Red (ML-1908R) or 540 nm Green (ML-1908G) 5 mW semiconductor diode laser

Power supply: Regulated output and output protection DC power supply,
Rated Input: 220 V/50 Hz or 110 V/60 Hz

Polarizer: Graduated 360° scale with LC 1°, mountable on to upright

Analyzer: Graduated 360° scale with LC 1°, mountable on to upright

Optical detector: Relative intensity measurable for Lasers up to 10 mW.

b) Light intensity meter:

Measures relative light intensity with range selection switch,
Rated Input: 220 V/50 Hz or 110 V/60 Hz