WEBSITE AND DATABASE FOR SALE

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. The twinkling of stars is due to
Q2. In which mirror the image is always erect and diminished irrespective of the object position?
Q3. Which equation first predicted electromagnetic radiation?
Q4. Coolidge tube is a ..........device
Q5. The fact that the density of an atomic nucleus is very high shows that the nuclear matter is in ....................
Q6. For a streamlined flow, the value of Reynolds number is................
Q7. A transformer in a radio changes the 240 V AC mains voltage to 12V. The turns ratio of the transformer is..................
Q8. Electrical energy is converted into mechanical energy in a ...............
Q9. Which of the following is 'charge independent'?
Q10. An object entering the earth's atmosphere at a high velocity catches fire due to.....
Q11. 1 HP is equal to ...................
Q12. A VHF radio station broadcasts at a frequency of 90 MHz. The wavelength of the wave broadcasted by the station is .................
Q13. Alpha particles are scattered by......in Rutherford's experiment
Q14. The centre of gravity of a triangular body lies at its................
Q15. X ray was invented by
Q16. The first astronomer to decribe the rotation of the earth on its own axis was .....
Q17. The nuclear volume depends on
Q18. A force which opposes the relative motion between two different layer of a liquid is called
Q19. The direction of the induced current is explained by ................
Q20. A 1000W water heater is used for half an hour everyday for 30 days. If the cost of electricity per unit is Rs.2, the total cost of electricity consumed will be
Q21. The geo-centric theory was proposed by
Q22. The weakest among the basic forces of nature is ............ force
Q23. According to Prout's model, the atoms of all elements are made up of ............
Q24. Electrons are embedded in a positively charged sphere. This was suggested by
Q25. The restoring force per unit area of a deformed body is known as...
Q26. A galvanometer is converted into volt meter by connecting
Q27. Blue of the sky is due to...............
Q28. The heliocentric theory was proposed by .................
Q29. The slowest among the following are .................
Q30. ....................is used as semi-conductor
Q31. The coolant used in a nuclear reactor is...............
Q32. A chain reaction is possible when the mass of the fuel is greater than the ............
Q33. The S I Unit of magnetic induction is ...........
Q34. Which of the following devices works on the principle of electromagnetic induction?
Q35. The geostationary satellites have a time period of about
Q36. An atom bomb will explode when the total mas of the fissionable material is.......
Q37. Large angle scattering of alpha particles shows that
Q38. A galvanometer is converted into an ammeter by connecting..............
Q39. The force between the moon and the earth which acts as a centripetal force keeping the moon in its orbit is................
Q40. The Cellular Phone System has a basic operational building block. What is it?
Q41. Glass cracks when heated while a metal does not because
Q42. "Radiator" is a ..............
Q43. Water is densest at
Q44. "Otto Hahn" is associated with...............
Q45. "Optic Fibres" are mainly used in
Q46. When water freezes, its volume ...........
Q47. When iron rusts its weight
Q48. A corcked bottle full of water when frozen will break because
Q49. The top of a tape recorder is coated with................
Q50. A piece of stone is thrown horizontally from a height. The path of the stone will be ..........
Answers Evaluate

 

 

© 2024 - All Rights with khub.info