Question

Draw diagram of a experimental arrangement for observing scattering of light in colloidal solution . Name the two chemicals used in this activity .

Answer 1

The diagram is in the textbook pg no196 The two chemicals used in the activity are sodium thiosulphate and sulphuric acid

Answer 2

1)place a strong source of white light at the front of the converging lens

2) allow the light beam to pass through a transparent glass tank containing clean water. In about 2l of clean water in the tank and add 1 to 2 ml of conc. H2so4 acid

3) allow the beam of light to pass through a circular, a hole made of a cardboard. Obtain a sharp image of the circular hole on screen by using converging lens