CBSE Class 10 Science Question Paper 2005 (1)

CBSE Class 10 Science Question Paper 2005 (1). Students can download the last year question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.

SCIENCE AND TECHNOLOGY (Theory)

General Instructions :

(i) The question paper comprises of two sections, A and B. You are to attempt both the sections.

(ii) The candidates are advised to attempt all the questions of Section A separately and Section B separately.

(iii) All questions are compulsory

(iv) There is no overall choice. However, internal choice has been provided in some questions. You are to attempt only one option in such questions.

(v) Marks allocated to every question are indicated against it.

(vi) Question numbers 1-5 in Section A and 21-23 in Section B are very short answer questions. These are to be answered in one word or one sentence.

(vii) Question numbers 6-10 in Section A and 24-25 in Section B are short answer questions. These are to be answered in 30-40 words each.

(viii) Question numbers 11-17 in Section A and 26-29 in Section B are also short answer questions. These are to be answered in 40-50 words each.

(ix) Question numbers 18-20 in Section A and 30 in Section B are long answer questions. These are to be answered in 70 words each

1. Why is much less heat generated in long electric than in filaments of electric bulbs ?

2. Where will the image be formed by a concave mirror when an object is placed between the ple and the focus point of the mirror ? 

3. Write the chemical equation for the reaction of hot aluminium with steam. 

4. Name a metal which offers higher resistance to the passage of electricity than copper. 

5. Give an example of photochemical reactions. 

6. What is the cause of release of unusually large energies in unclear fission reactions ? How is the energy per fission calculated ?

7. With respect to air the refractive index of kerosene is 1.44 and that for diamond is 2.42. Calculate the refractive index of diamond with respect kerosene.

Please click the link below to download pdf file  for CBSE Class 10 Science Question Paper 2005 (1).