PHYSICAL SCIENCES (English Version) Parts A and B Time: 2 Hours Maximum Marks: 35 SECTION-I Group-A 5X2 = 10 Note: 1. Answer ANY FIVE questions choosing at least TWO from each of the following groups, i.e., Groups A & B. 2. Each question carries 2 marks. 1. Derive the relation between acceleration due to Gravity and Gravitational constant. 2. Distinguish between step up and step down transformer. 3. What are the uses of LASER in medicine. 4. Explain a -decay and b-decay. Group 'B' 5. What are the limitations of Arrhenius theory? 6. Calculate the number of moles of NaOH present in 750 ml of 0.4 m of solution. 7. Name two chromophores and auxochromes. 8. Define ionization energy and explain the factors of ionization energy. SECTION – II Note: 1. Answer any Four of the following Six questions. 4X1 = 4 2. Each question carries 1 mark. 9. State Flemming's left hand rule. 10. What is damped vibration?. 11. Draw the symbol of p-n-p and n-p-n transistor. 12. Why are the alcohol distilleries located at the places of much water source? 13. How are 'p' orbital designated. 14. Define pH. SECTION – III Note: 1. Answer any Four questions, choosing Two from each of the following groups. 2. Each question carries 4 marks. Group 'A' 4X4 = 16 15. Describe a method to determine the velocity of sound in air? 16. What are the differences between progressive waves theory and stationary waves? 17. Explain Nuclear Reactor with a labeled diagram. 18. Two coils have an effective resistance 9 ohms when connected in series and 2 ohms when connected in parallel. Find the values of individual Resistance of coils? Group 'B' 19. State and explain with one example of Aufbau principle? 20. Explain how does atomic Radius and ionization energy varies in a group and period? 21. How is soap industrially prepared? 22. What are Alkanes? Write the substitution and combustion reaction of alkanes? SECTION –IV (Marks: 1 x 5=5) Note: 1. Answer Any One question from the following. 2. Marks are 5. 23. Draw and locate the neutral points when the north pole of a bar magnet faces geopgraphical north and when the south pole of bar magnet faces geopgraphical north. 24. Draw a diagram showing the manufacture of Alcohol. |
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