Question 37

Q37Multiple choice

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/tumbler in the box as shown in the Fig.2.4. They were amazed to see that milk taken in the tumbler was Fig. 2.4 IS MATTER AROUND US PURE 17 16-04-2018 illuminated. They tried the same activity by taking a salt solution but found that light simply passed through it?

This question refers to a figure in the original PDF.

Show answer

(a) Explain why the milk sample was illuminated. Name the phenomenon involved.

(b) Same results were not observed with a salt solution. Explain.

(c) Can you suggest two more solutions which would show the same effect as shown by the milk solution?