The above diagram shows the arrangement for observing scattering of light in colloidal solution. Why does the beaker appears blue ?

Because of scattering of blue light only

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Because of scattering of red light

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Beacuse no scattering happens

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Because of higher wavelength of blue

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Solution

The correct option is A
Because of scattering of blue light only

In the visible spectrum of light, blue colour has a shorter wavelength. The light having a shorter wavelength scatters the most. Hence the colloidal particles scatter the blue light the most. So only blue light fall on our eyes and hence the container looks blue.

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