COMMON QUESTIONS
1. Describe an experiment with necessary theory by which the velocity of sound in air is determined by using resonance tube method.
2. Define Self Inductance. Derive an expression for energy stored in an inductor.
3. What are X-rays? Describe the modern Coolidge tube method to produce X-rays.
4. Write the laws of transverse vibration of string. Explain how the law of length is verified experimentally.
5. State Biot’s and Savart’s law. Find the derivation of magnetic field at the center of current carrying circular coil.
6. What is P-N junction? Describe forward and reverse biased condition of P-N junction.
INDIVIDUAL QUESTIONS
SET 1
7. How does the temperature affect the frequency of an organ pipe?
8. How is magnetic field made radial in moving coil galvanometer?
9. Differentiate between conductor and semiconductor.
10. Describe an experiment with necessary theory by which the velocity of sound in air is determined by using resonance tube method.
11. Define Self Inductance. Derive an expression for energy stored in an inductor.
12. What are X-rays? Describe the modern Coolidge tube method to produce X-rays.
13. Write the laws of transverse vibration of string. Explain how the law of length is verified experimentally.
14. State Biot’s and Savart’s law. Find the derivation of magnetic field at the center of current carrying circular coil.
15. What is P-N junction? Describe forward and reverse biased condition of P-N junction.
SET 2
16. Explain why the soldiers are ordered to break their steps while crossing a bridge.
17. State and explain Lenz law.
18. In the production of X-ray, how will you control the penetrating power of X-rays?
19. Describe an experiment with necessary theory by which the velocity of sound in air is determined by using resonance tube method.
20. Define Self Inductance. Derive an expression for energy stored in an inductor.
21. What are X-rays? Describe the modern Coolidge tube method to produce X-rays.
22. Write the laws of transverse vibration of string. Explain how the law of length is verified experimentally.
23. State Biot’s and Savart’s law. Find the derivation of magnetic field at the center of current carrying circular coil.
24. What is P-N junction? Describe forward and reverse biased condition of P-N junction.
SET 3
25. Why are holes made in wooden box of sonometer?
26. When the tension in the string is increased by four times, by what factor does the velocity of wave in the string change?
27. A stream of protons is moving parallel to a stream of electrons. Do the two streams tend to come closer or move apart?
28. Describe an experiment with necessary theory by which the velocity of sound in air is determined by using resonance tube method.
29. Define Self Inductance. Derive an expression for energy stored in an inductor.
30. What are X-rays? Describe the modern Coolidge tube method to produce X-rays.
31. Write the laws of transverse vibration of string. Explain how the law of length is verified experimentally.
32. State Biot’s and Savart’s law. Find the derivation of magnetic field at the center of current carrying circular coil.
33. What is P-N junction? Describe forward and reverse biased condition of P-N junction.
SET 4
34. Can a wire act as an inductor?
35. Why is the core of transformer made of soft iron?
36. Why is full wave rectifier preferred to half wave rectifier?
37. Describe an experiment with necessary theory by which the velocity of sound in air is determined by using resonance tube method.
38. Define Self Inductance. Derive an expression for energy stored in an inductor.
39. What are X-rays? Describe the modern Coolidge tube method to produce X-rays.
40. Write the laws of transverse vibration of string. Explain how the law of length is verified experimentally.
41. State Biot’s and Savart’s law. Find the derivation of magnetic field at the center of current carrying circular coil.
42. What is P-N junction? Describe forward and reverse biased condition of P-N junction.
SET 5
43. What do you mean by hole in the semiconductor?
44. Write down the properties of X-rays?
45. How can we change the quality and intensity of an X-rays?
46. Describe an experiment with necessary theory by which the velocity of sound in air is determined by using resonance tube method.
47. Define Self Inductance. Derive an expression for energy stored in an inductor.
48. What are X-rays? Describe the modern Coolidge tube method to produce X-rays.
49. Write the laws of transverse vibration of string. Explain how the law of length is verified experimentally.
50. State Biot’s and Savart’s law. Find the derivation of magnetic field at the center of current carrying circular coil.
51. What is P-N junction? Describe forward and reverse biased condition of P-N junction.
NOTES
· Common questions for class students only.
· Set questions for weak students only(Set 1-sec A, Set 2-sec B, Set 3- sec C, Set 4-sec D and Set 5-sec E)
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