KNOWLEDGE

Crop: - When plants of the same kind are cultivated at one place on a large scale,                  it is called a crop. Cropping patterns :- India is a vast country. The climatic conditions like                                               temperature, humidity and rainfall vary from one region to                                               another. Accordingly, there is a rich variety of crops grown in                                               different parts of the  country. Despite this diversity, two                                               broad cropping patterns can be identified.                                              These are: (i) Kharif Crops : The crops which are sown in the rainy season are called kharif crops.                                The rainy season in India is generally from June to September. Paddy,                                 maize, soyabean, groundnut and cotton are kharif crops. (ii)

Evaluation Scheme Time Allowed: Three hours                               Max. Marks: 30 Two experiments one from each section 7+7 Marks Practical record [experiments and activities] 5 Marks One activity from any section 3 Marks Investigatory Project 3 Marks Viva on experiments, activities and project 5 Marks Total 30 marks

PRACTICALS    The record to be submitted by the students at the time of their annual    examination has to include: - Record of at least 12 Experiments [with 6 from each section], to be     performed by the students. - Record of at least 6 Activities [with 3 each from section A and section B],    to be performed by the students. - The Report of the project to be carried out by the students.

SN EXPERIMENTS(OBJECTIVE) DATE OF EXPERIMENT DATE OF SUBMISSION SIGNATURE TEACHER PARENTS SECTION-A E1 To determine resistivity of two  wires by plotting a graph for potential difference versus current. E2 To find resistance of a given wire  using metre bridge. E3 To verify the laws of combination (series/parallel) of resistances using a metre bridge. E4 To compare the emf of two given primary cells using potentiometer. E5 To determine the internal resistance of given primary cell using potentiometer. E6 To determine resistance of a galvanometer by half-deflection method and to find its figure of merit. SECTION-B E7 To find the value of v for different values of u in case of a concave mirror and