Klinger Scientific – Brewster Angle Experiment Complete Set Up

When un-polarized light is incident on the surface of a dielectric (such as a glass), at a certain angle of incidence the reflected light is completely plane-polarized. This phenomenon was discovered by Sir David Brewster and, thus, the specific angle is called Brewster’s angle or polarization angle. Also, from the experiment, it can be confirmed that the reflected ray and the refracted ray are 90° apart when the incident angle is set at Brewster’s angle.

OBJECTIVES

Measurement of Brewster’s angle for a given dielectric dispersive medium.

KEY FEATURES

• Rotating Table: A simple, smooth and compact rotating table. The rotating table used is extremely smooth to operate. It is a single assembly that holds glass sample, analyzer and light sensor, thus minimizing the size of the whole equipment. Smooth rotation makes measurement continuous and accurate.
• Light Sensor: This enables measurement of light intensity at various angles of reflection. The meter reads with a precision of 1 lux. The Lux meter helps obtain a continuous smooth curve of angle vs intensity and determine the Brewster angle much more accurately than the manual method.

WHAT YOU NEED – ITEMS INCLUDED IN SET UP:

• KSCIOB1 Optical Bench Set 0.8m 1
• KSCIHA001 Light Source Holder 1
• KSCIHA010 Converging Lense Holder
• KSCIHA012 Adjustable Collimating Slit Holder 1
• KSCIUP030 Rotating Table Assembly 1
• KSCIAC002 Analyzer Square 1
• KSCIHA511 Light Sensor Holder 1
• KSCIPH61022D/2 Power Supply for Light Source 1
• KSCIAC004 Glass Block 1
• KSCIDP1 Data Processor 1