Tyndall Effect or Tyndall scattering is the

John Tyndall, one of Ireland’s most influential and successful scientists, was the first person ever to explain why the sky is blue, and which colors combine to make up the rainbow. As evident here, his primary interest was the in interaction of light with matter.

This phenomenon usually carried out to check whether a given sample is a true solution or a suspension (colloid).

The Tyndall Effect

The scattering effect of light produced by colloidal particles, when a beam of light is let through a solution containing intermediate particles (1 nm to 1 μm) known as colloidal particles, is termed as Tyndall effect.

The Tyndall effect

Tyndall is observed in colloids and sometimes in mixtures, but it is never exhibited by true solutions. The reason behind this scattering effect is the suspension particles that exhibit colloidal motion (Brownian motion).

Factors affecting Tyndall Effect

The amount of light scattered depends on the intensity of incident light and the density of particles.

Applications of Tyndall’s Effect

Driving in fog


Key Takeaway(s)


Concepts Berg

How is the Tyndall Effect Responsible for Blue Eye Colour?

Can you give a situation where the Tyndall effect can be observed?

Does the Tyndall effect go away on its own?

What does the Tyndall effect look like under the eyes?

Why does the Tyndall effect not work on true solutions?

What is the Tyndall effect in a colloid

What is the example of the Tyndall effect

What is meant by the Tyndall effect

What causes the Tyndall effect

How does the Tyndall effect happen

What is the Tyndall effect

What are some examples of the Tyndall effect?

What are the signs of the Tyndall effect?

What are the applications of the Tyndall effect How is it used in such ways

Why do lyophobic colloids show the Tyndall effect?

What is the Tyndall effect, and what is its purpose

Who invented the Tyndall effect and how


Reference Books

  • TYNDALL EFFECT: Light In a jar of milk By Tyndall Institiúid Náisiúntá (Tyndall National Institute, Cork, Ireland)
  • Laser Experiments For Beginners By Richard N. Zare, Bertrand H. Spencer, Dwight S. Springer, Matthew P. Jacobson Department of Chemistry, Stanford University, Stanford, California

Reference links