Storng Tyndall effect is observed only w...

Storng Tyndall effect is observed only when
(i) the refractive indices of the dispersed phase and the dispersion medium differ greatly in magnitude
(ii) the diameter of the dispersed particles is biggest than the wavelength of the light used
(iii) the refractive indices of the dispersed phase and the dispersion medium are similar
(iv) the diameter of the dispersed particles is not much smaller than the wavelength of the light used.

A

1 and 4

B

2 and 4

C

1 and 3

D

2 and 3

Text Solution

Verified by Experts

The correct Answer is:

B

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Dispersed phase and sispersion medium for fog are :

A

solid , liquid

B

liquid, liquid

C

liquid, gas

D

gas, liquid

Tyndal effect is observed when- (A) Diameter of dispersed particles is not much smaller than the wavelength of light used (B) The refractive indices of the dispersed phase and the dispersion medium differ greatly in magnitude ( C) Diameter of dispersed particles is much larger than the wavelength of the light used

A

a and b

B

a and c

C

b and c

D

a,b and c

The dispersion medium in Gel is

A

Solid

B

liquid

C

Water

D

Gas

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