Solution:
Both Assertion and Reason are correct, and Reason is the correct explanation for Assertion.Assertion: The dissolved particles are too tiny to reflect light as it passes through a real solution. Suspensions may scatter light; however, if there are enough suspended particles, the suspension may become opaque, and the light scattering won't happen.
The Tyndall effect is based on the idea that light beams scatter because of massive colloidal particles in the solution that scatter the light.
Reason: In a real solution, the particles are not large enough to scatter the light particles, which is why the Tyndall effect is not observed. Colloid particles are big enough to exhibit the Tyndall effect since they are more significant than water.
