Tyndall effect for class 10 best explain

                                                              

                                                                                                                                                                                                  TYNDALL EFFECT

When light passes through a colloid its path becomes visible. this is called Tyndall effect.

e.g 

1. path of light become visible when light enters a dark and dusty room through a silt or ventilator.

2. path of light became visible when light passes through a dense canopy of tree in a forest.

  

Generally, blue light is scattered to a greater extent when compared to red light. This is because the wavelength of blue light is smaller than that of red light. This is the reason why the smoke released by motorcycles sometimes appears blue.

The Tyndall effect was first discovered by (and is named after) the Irish physicist John Tyndall. The diameters of the particles that cause the Tyndall effect can range from 40 to 900 nanometers (1 nanometer = 10^-9 meter). In comparison, the wavelength of the visible light spectrum ranges from 400 to 750 nanometers.