Tyndall effect is observed when:...

Tyndall effect is observed when:

The diameter of dispersed particles is much smaller than the wavelength of light used.

The diameter of dispersed particles is much larger than the wavelength of light used.

The refractive index of dispersed phase is greater than that of the dispersion medium.

The diameter of dispersed particles is similar to the wavelenght of light used.

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The correct Answer is:

Diameter of dispersed particles should not be much smaller than wavelength of light used.
Refer topic surface chemistry

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Tyndall effect is observed during the projection in a cinema theatre. Why?

The Tyndall effect is observed only when following conditions are satisfied: (A) the diameter of the dispersed particles is much smaller than the wavelength of the light used. (B) the diameter of the dispersed particle is not much smaller than the wavelength of the light use (C) the refreactive indices of the dispersed phase and dispersion medium are almost similar in magnitude (D) the refractive indices of the dispersed phase and dispersion medium differ greatly in magnitude.

Tyndall effect is observed only when (i) the diameter of the dispersed particles is not much smaller than the wavelength of the light used. (ii) the refractive indices of dispersed phase and dispersion medium differ greatly in magnitude . (iii) the size of the particles is generally between 10^(-11) and 10^(-9) m in diameter. (iv) the dispersed phase and dispersion medium cna be seen separately in the system .

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