The human eye contains a certain protein called rhodopsin that changes shape when it is exposed to light. when rhodopsin absorbs light, part of it undergoes a chemical change. this is how eyes sense the presence of light.

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.