Whipped cream is an example of a colloidal system where the dispersion medium and dispersed phase are:

In emulsions,the dispersion medium and dispersed phase are

The conditions given below are in the context of observing Tyndall effect in colloidal solutions:
$A$. The diameter of the colloidal particles is comparable to the wavelength of light used.
$B$. The diameter of the colloidal particles is much smaller than the wavelength of light used.
$C$. The diameter of the colloidal particles is much larger than the wavelength of light used.
$D$. The refractive indices of the dispersed phase and the dispersion medium are comparable.
$E$. The dispersed phase has a very different refractive index from the dispersion medium.
Choose the most appropriate conditions from the options given below:

Which of the following is applicable to a thin film?

Which characteristic is true in respect of colloidal particles?

The temperature above which,formation of micelles takes place is called