Apparatus

Light Source

The Mercury light bulb is placed inside a black box with a small vertical slice opening.

Figure 2.2-1: Spectrum of the mercury light when viewed from glass prism.

Prism Glass

As the name suggests, it is made of glass with two refracting surfaces where light can be transmitted and one `rough surface`` where light gets scattered or absorbed.

Figure 2.2-2: Prism glass

Spectrometer

A spectrometer consists of four components: collimator, telescope, prism table, and vernier table.

Figure 2.2-2: Spectrometer

Additional Components

Water label, small rod for tightening spectrometer parts.