Question

Give reasons: a. Path of light becomes visible when it passes through a beaker having sand in water​

Answer 1

Answer:

When a beam of light is passed through a colloidal solution, where the size of the constituent particles is comparable to that of the wavelength of the light beam, the beam of light is scattered in such a way that its path or trajectory becomes visible and this phenomenon of scattering of light making its path visible is termed as Tyndall Effect.

Explanation:

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