PDF chapter test TRY NOW

Choose the correct answer:
  
1. It was an evening. Rose saw some path of light through the window gap inside her room. It was sunlight. She saw some tiny substances scattering light. What is the phenomenon responsible here?
 
2.Veena was asked to pick a liquid in a solid colloidal solution. She found four samples in different containers. Which of the following do you suggest Veena to select?