students take three test tubes A,B,and C having salt solution starch in water and suspension of sand in water.He past small stripes of coloured papers on one side of each test tubes he then observed the colour paper from other side of test tube one by one through the liquid what would be his obervation give reason
Answers
Explanation:
If a student pastes small stripes of colored paper on one side of each test tube containing salt solution, starch in water, and a suspension of sand in water and then observes the color paper from the other side through the liquid, he/she would see the following:
In test tube A containing salt solution, the color of the paper would appear to be the same as seen from the other side because salt solutions are transparent and do not scatter light, so the light can easily pass through the solution and reach the observer's eye.
In test tube B containing starch in water, the color of the paper would appear to be somewhat dull and less intense compared to the original color because starch particles scatter light and cause light to be absorbed and reflected in different directions, thus reducing the intensity of the light passing through the solution.
In test tube C containing a suspension of sand in water, the color of the paper would appear to be very blurred and hazy because sand particles are much larger than starch particles and cause light to scatter in many directions, making it difficult for the light to pass through the solution and reach the observer's eye.
So, the observation would depend on the nature of the liquid present in each test tube and its ability to scatter light.