(Hindi & English Version)
Time : 3 Hours Maximum Marks : 75
Note :
(i) All questions are compulsory.
(ii) Internal options are given in Question Nos. 11, 12, 15,
17, 18, 21 and 22.
(iii) Answer Question Nos. 1 to 6 in about 30 words each.
(iv) Answer Question Nos. 7 to 12 in about 50 words each.
(v) Answer Question Nos. 13 to 17 in about 75 words
each.
(vi) Answer Question Nos. 18 to 22 in about 150 words each.
(vii) Draw neat and clean labelled diagrams wherever required. (viii) Marks of each question are indicated against it.
1. What is Combustion ? 2
2. Write the names of non-renewable sources. 2
3. What is Autotrophic Nutrition ? 2
4. What are solar heating devices ? 2
5. What is Asexual Reproduction ? 2
6. Draw labelled diagram of budding in Hydra. 7
7. What is the importance of technology in Telecommunication ? 3
8. Write Coulomb's Inverse Square Law of Magnetism. 3
9. Write composition of Blood. 3
10. Draw a labelled diagram of Vernier Callipers. 3
11. What is Stomata ? Draw the diagram of the opening process of stomata.
(Or)
How many types of transportation of materials in plants ? 3
12.What is backlash error ?
(Or)
What precautions should be taken while using a screw guage ?
(Any three) 3
13. Write difference between Saprophytic and Parasitic Nutrition. 4
14. Name the main Pollutant and how are they originated ? 4
15. What do you understand by Kinetic Energy and Potential Energy ? Write their units.
(Or)
Why is charcoal good fuel in comparison to wood ? 4
16. Write the uses of Titanium. 4
17. Write four main functions of Auxin.
(Or)
What is Synapsis ? 4
18. Explain food web with the help of diagram.
(Or)
Explain carbon dioxide cycle in nature with the help of a diagram. 5
19. Explain the fractional distillation of Petroleum under the headings :
(i) Labelled diagram of Fractionating Column.
(ii) Name of the products at different temperature due to distillation. 5
20. Describe the Nuclear Reactor with respect to the following heads :
(i) Labelled diagram
(ii) Working 5
21. What is Short Circuit and Overloading ? How can we prevent from these ?
(OR)
Explain divide touch method of magnetization under the following
heads :
(i) Labelled diagram
(ii) Description
(iii) Position of poles 5
22. Describe floating tank type Biogas plant with the help of a labelled diagram.
(Or)
Explain the solar cooker under the following heads :
(i) Principle
(ii) Labelled diagram of solar cooker
(iii) Uses. 5