Give any ten examples of tyndall effect

CBSE Class 9
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give any ten examples of tyndall effect

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The Tyndall effect is scattering of light by particles in a colloid or particles in a fine suspension. It can be seen when the light passes through the colloids or turbid substances causing the light to scatter in multiple directions. Examples are:

  • A blue iris in an eye is due to Tyndall scattering in a turbid layer in the iris.
  • The Tyndall effect in opalescentglass: It appears blue from the side, but orange light shines through.
  • Light being shined through milk. As milk is a collloid.
  • On a day when the sky is overcast, the sunlight passes through the turbid layer of the clouds, resulting in scattered, diffuse light on the ground.
  • Fog because it is a colloidal substance. When light hits a substance with scattered particles, it collides with the particles, causing the light to scatter in multiple directions.
  • The tyndall effect can be observed when the sunlight passes through the canopy of a dense forest.
  • This effect can also be seen when the sun sets as the sky changes color depending on how low the sun is and as a result how much atmosphere the sun’s light must pass through.
  • The blue colour of smoke coming out from a 2 stroke engine, or even a four stroke engine where the burnt engine oil provides the particles.
  • The Tyndall Effect is also the reason why the sky blue.