Investigation of magnetic emulsions in magnetic field by rotating test-tube method

The effect of diffraction scattering of light in a magnetic emulsion in a magnetic field in a rotating test-tube has been investigated. The non-linear dependence of the angle of deviation of the diffraction band on the rotation speed is established. An interpretation of the effect is proposed based on the balance of torques from the magnetic field and the drag force of the fluid. Agreement with the experiment is possible on the assumption of the destruction of the chains of magnetic emulsion microdroplets during rotation. (paper)