A group of students took an old shoe box and covered it with a black paper from all sides.They fixed a source of light (a torch) at one end of the box by making a hole in it and made another hole on the other side to view the light . They placed a milk sample contained in a beaker in the box as shown in the figure given below. They were amazed to see that milk taken in the tumbler was illuminated. They tried the same activity by taking a salt solution but found that light simply passed through it.
i) Explain why the milk sample was illuminated.Name the phenomenon involved.
ii) Same results were not observed with the salt solution. Why?
iii) Suggest two more solutions which would show the same effect as shown by milk.
Answers
HEY MATE LET ME ANSWER YOUR QUESTION.BUT DUDE,PLEASE BEFORE VIEWING THE ANSWER PLEASE SUPPORT ME BY MARKING THIS AS BRAINLIEST AND PLEASE GIVE IT A THANKS PLS MARK AS BRAINLIEST PLS BRO PLS...PLEASE BROTHER...
YOUR ANSWER:-
Since milk is a colloid and when light is scattered from the particles of colloids it is illuminated and it is because of Tyndall effect. In the tyndall effect light is scattered by particles in a colloid or particles in a fine suspension while showing no light in a true solution.It is used to determine whether a mixture is true or colloidal.
PLEASE MARK AS BRAINLIEST AND GIVE THANKS PLEASE....PLEASE...
ANSWERED BY ALOK16022006-ALOK MISHRA
Explanation:
1 ans. the milk is illuminated because milk is a collodial solution and it's particles are big enough to scatter,hence they scatter the light passing through it.this phenomenon is called " tyndal efect " .
2ans. solute particles size is too small to Scatter the light, hence it does not show "tyndal efect ".
3.ans gold sol and arsenius sulphide.