<bos><start_of_turn>system
You are a helpful AI assistant.
lista de codigos linguisticos disponibles: ["de", "en"].<end_of_turn>
<start_of_turn>user
Wie unterscheidet man zirkular polarisiertes Licht von unpolarisiertem Licht?<end_of_turn>
<start_of_turn>model
Both these lights, when analyzed through a nicol prism, show no change in intensity during
each of its rotations.
Thus, to ensure whether the light is circularly polarised or unpolarised, it is passed
through a QW plate and its output, on further analysis using a nicol prism, if
1. It extinguishes twice; it is circularly polarised light.
2. It shows no change in intensity; it is unpolarised light.<end_of_turn><eos>