CBSE Guess > Papers > Question Papers > Class X > 2006 > Science > Outside Delhi Set I SCIENCE AND TECHNOLOGY— 2006 (Set I — Outside Delhi) SECTION A Q. 1. Name the product other than water formed on burning or etnanol in air. (1) Q. 2. How can you show that the magnetic field produced by a given electric current in the wire decreases as the distance from the increases? (1) Q. 3. A ray of light is incident on a convex mirror as shown below: (2)
Redraw the above diagram after completing the path of the light ray after reflection from the mirror. Q. 4. Why does magnesium powder react much more rapidly than magnesium ribbon with dilute sulphuric acid? (1) Q. 5. An object is placed at a distance of 12 cm in front of a concave mirror. It forms a real image four times larger than the object. Calculate the distance of the image from the mirror. (2) Q. 6.
Or A bulb is rated at 5.0 volt, 100m A. Calculate its
Q. 7. Name the type of nuclear reaction by which the Sun produces its energy. List two conditions which are present at the centre of the Sun responsible for this reaction. (2) Q. 8. Given below are the pH values of four different liquids: 7.0, 14.0, 4.0, 2.0 Which of these could be that of
Q. 9. Distinguish between natural and artificial satellites.
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Q. 11.
Or Explain the following terms by giving one example of each: (3)
Q. 12.
Or Complete the following reaction equations:
Q. 13.
Q. 14. What is a nuclear reactor? State one function each of
Q. 15.
Q. 16. What is an alloy? How is an alloy made? List two purposes of making alloys. Mention the constituents and two properties of each of the following alloys: (5)
SECTION B Q. 17. Name the type of fission carried out by Amoeba. (1) Q. 18. Write the expanded form of AIDS. (1) Q. 19. Differentiate between tropic and nastic movements in plants. Give one example of each. (2) Q. 20. “Rapid increase of population disturbs the biotic environment” Justify this statement taking any two aspects. (2) Q. 21. Write the functions of the following in the digestive process: (3)
Q. 22. Give reasons for the following: (3)
Q. 23. Who proposed the “Theory of Natural Selection”? Explain this theory briefly. (3) Q. 24.
Or
English 2006 Question Papers Class X CBSE 2006 Question Papers Class X |