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Unfortunately, Mr. M. Subramanian, who maintained this website lost his battle to cancer and passed away in July, 2019. The database has over 50,000 questions. If you are interested in purchasing the website/database, please reach out using the form here.
Khub.info Learn TNPSC exam and online pratice
Q1. When we compress a coil spring. the elastic potential energy
Q2. When white light passes through a dispersive medium what colours have maximum and minimum deviation?
Q3. When will an atom radiate energy?
Q4. When yellow or blue paint is illuminated by white light, the only colour they both reflect is
Q5. Wher.e does the nuclear power reactor situated in Tamil Nadu?
Q6. Where does a controlled chain reaction takes place?
Q7. Where does the centre of gravity die in a triangular body?
Q8. Where does the heat energy for geo-thermal energy resources come from?
Q9. Where is BARC situated?
Q10. Where negatively and positively charged ions free to move constitute current?
Q11. Where should an object be placed in front of a convex lens to get a real image of the object?
Q12. Where should the object be placed in simple microscope?
Q13. Where the weight of an object is at maximum?
Q14. Where to place the objects of small size in a simple microscope in order to get magnified image?
Q15. Where was the first nuclear reactor built in?
Q16. Where was the first nuclear reactor built?
Q17. Where will the image be formed by a concave mirror when an object is placed between the pole and the focus point of the mirror?
Q18. Which are used in telephone and radar?
Q19. Which barometer essentially consists of a thin metal box exhauster of air?
Q20. Which bean is one whose rays remains the same distance apart?
Q21. Which coil is used in DC motor?
Q22. Which colour deviates least in the formation of spectrum by a prism?
Q23. Which colour deviates the most on passing through a prism?
Q24. Which colour is complemen­tary colour of yellow light?
Q25. Which colour is produced by mixing of blue and green?
Q26. Which colour is scattered very less?
Q27. Which colour is strongly scattered by the molecules of air?
Q28. Which colour of light undergoing dispersion travels through the glass with more velocity?
Q29. Which colour will be scattered more?
Q30. Which colours cannot be obtained by mixing the other colours
Q31. Which copper wire has the lowest resistance?
Q32. Which cylinder surrounds the cathode?
Q33. Which device converts electrical into mechanical energy?
Q34. Which device converts electrical into sound energy?
Q35. Which device converts mechanical into electrical energy ?
Q36. Which device converts solar into electrical energy?
Q37. Which device generates an alternating current?
Q38. Which device is used as a stand by during power failures?
Q39. Which device is used to convert electrical energy into sound energy?
Q40. Which device is used to produce electric current?
Q41. Which device is used to test whether a object is charged or not
Q42. Which device uses a split ring commutator?
Q43. Which effect gives stoke’s line?
Q44. Which effect is utilized by an electric bulb?
Q45. Which effect of electric current is used in gold plating of silver jewellery?
Q46. Which element is isolated by curies?
Q47. Which elements exhibit artificial radioactivity?
Q48. Which elements exhibit the phenomenon of natural Radioactivity?
Q49. Which energy a flying bird possesses?
Q50. Which energy is used in artificial satellites?