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What are the conditions to be satisfied ...

What are the conditions to be satisfied to exhibit Tyndall effect?

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The correct Answer is:
The diameter of the dispersed particles should not be much smaller than the wavelength of the light used. It must be between 1-100 nm.
The refractive indices of the dispersed phase and the dispersion medium must differ greatly in magnitude.
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Knowledge Check

  • Tyndall effect is due to

    A
    scattering of light by colloidal particles
    B
    reflection of light by colloidal particles
    C
    refraction of light by colloidal particles
    D
    adsorption of light by colloidal particles

  • Which of the following will show Tyndall effect ?

    A
    Aqueous solution of soap below critical micelle concentration
    B
    Aqueous solution of soap above critical micelle concentration
    C
    Aqueous solution of sodium chloride
    D
    Aqueous solution of sugar

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