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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None of these

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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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Similar questions

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(b) Out of blue light and red light, which one is scattered more easily ?
(c) Which component of sunlight is scattered away when the sun appears red at sunrise or sunset ?
(d) What causes the scattering of blue component of sunlight in the atmosphere ?

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