Question

Which of the following factor(s) affect the rotation of plane polarized light?

• A. Temperature
• B. Wavelength of light
• C. Solvent
• D. All of the above.

Answer 1

The correct option is D All of the above.

Factors affecting rotation of plane polarized light:
The amount of rotation $\left(\theta \right)$ is not constant for a given optically active compound. It depends on :

1. Length of sample vessel
2. Temperature
3. Solvent
4. Concentration (for solutions)
5. Pressure (for gases)
6. Wavelength of light

The length of the vessel and concentration or pressure determine the number of molecules in the path of the beam.Rotations determined for a particular compound under the same conditions are identical