Question : When a strong beam of light is passed through a colloidal solution, the light will
Option 1: be scattered
Option 2: pass unchanged
Option 3: be absorbed
Option 4: be reflected
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Correct Answer: be scattered
Solution : The correct option is be scattered.
A strong beam of light is dispersed when it passes through a colloidal solution. The Tyndall effect was named after the 19th-century scientist John Tyndall, who first observed it. The Tyndall effect happens when light collides with colloidal particles floating in a media (typically a liquid or gas) that are big enough to disperse the light but small enough to avoid gravity's pull. The scattered light appears as a cone or beam of light as a result of the colloidal particles dispersing the incident light.
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