Is it true that to observe the Tyndall effect, the size of the scatterer must be smaller than the wavelength of light?

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True

False

answer is B.

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Detailed Solution

The given statement is false
When a light beam passes through a medium of suspended particles, then the scattering of light takes place. This phenomenon is called the Tyndall effect. To observe the Tyndall effect, the size of the scatter must not be smaller than the wavelength of the light. Otherwise, they won’t be able to scatter the light.
The correct statement would be that to observe the Tyndall effect, the size of the scatterer must be larger than the wavelength of light.

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