Please go through the following link and solve wuestions from chaper 1 And 2(from part 1)
for any doubts u can make a call.http://www.dhirendersharma.in/2013/11/the-worksheets-for-class-12-are.html?m=1

class x holiday home work

answer the following questions.

1. construct the ray diagrams for the image formation in the following cases,when the object is kept between a) P and F in front of concave mirror b) at C  c) beyond C
2. define the following terms a) Pole b) radius of curvature  c) Focus
3. Differentiate real image from virtual image.
4. write the uses of concave and convex mirror.
5. complete the ray diagram
   
6. complete the following ray diagrams
   

class ix science sample paper 2011-12

u can download the question paper from the following link

http://www.cbse.nic.in/curric~1/sqp_term1_sep11/SQP_SC_IX_I.pdf

very useful and resourceful website......classes IX X and XI

please go through the following link    http://amrita.olabs.co.in