Sample Paper

PHYSICAL SCIENCE

1.Write the differences between evaporation and boiling?
2.How do you find specific heat of a solid experimentally?
3.Write an activity on water of crystallisation?
4.Compounds such as glucose and alcohol though contain hydrogen are not categorised as acids why? explain with an activity? 
5.How do you verify that Sin i / Sin r is a constant?
6.How mirages are formed?
7.How do you find the focal length of a lens experimentally?
8.Focal length depends on surrounding medium? Explain with an activity?
9.How do you correct the eye defect Myopia?
10.How do you correct the eye defect Hypermetropia?
11.Write about Bohr's atomic model and its limitations?
12.Explain the significance of four quantum numbers?