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. When a force is exerted on an object, it can change its
Q2. When a divergent beam of light is incident on a plane mirror, it is reflected back as a .......... beam.
Q3. When a current flowing through a resistance increases four times, how many times heat developed will increase?
Q4. When a current is supplied by a battery which energy is converted into electrical energy?
Q5. When a current carrying conductor placed in a magnetic field experiences a force, what is it due to?
Q6. When a charged particle enters a uniform magnetic field its kinetic energy
Q7. When a capillary tube is dipped in mercury
Q8. When a body rotates about a fixed axis, its motion is a
Q9. When a bimetallic strip is heated ............. expands more than the other metal.
Q10. When 6 KWh is converted into joule, what is its value?
Q11. What will happened to the mass number when gamma particle is emitted?
Q12. What will happen when the direction of current in conductor is reversed, then the deflection of the needle of the compass placed near a current carrying conductor ?
Q13. What will be the resistance when the length of a wire is halved?
Q14. What will happen when a ray of light passes from a denser to rarer medium?
Q15. What will happen when monochromatic light passes from denser to a rarer medium?
Q16. What will be the charge on the other body, when a charged body attracts another body?
Q17. What will be the angle of reflection if light falls normally on the reflecting surface?
Q18. What was the conclusion of the atom by the discovery of natural radioactivity?
Q19. What type of reactor is in Kalpakkam?
Q20. What type of lens the water drop acts like?
Q21. What substances can convection happen in?
Q22. What type of fuel is wood?
Q23. What problem does sulfur dioxide cause?
Q24. What rays are produced when the accelerated electron’s strike the tungsten?
Q25. What should be the maximum velocity of water in pipe of diameter 5 em so that the flow is lamina?
Q26. What particle is obtained during the conversion of proton into neutron?
Q27. What is unit of humidity of atmosphere?
Q28. What is used to detect the presence of un seen water objects
Q29. What is the work done in moving a charge (q) between two points in an electric field?
Q30. What is the work to lift an’ object of mass 1 kg to a vertical height of 1 m?
Q31. What is the wavelength range of visible spectrum?
Q32. What is the wavelength of X­rays?
Q33. What is the wavelength of wave having frequency of 1200 KHz?
Q34. What is the wavelength of Indigo colour?
Q35. What is the wavelength of EM wave produced by Hertz
Q36. What is the voltage required for domestic appliances?
Q37. What is the wavelength of an electron moving with a velocity of 500 km S–1. [me = 9 × 10–31 kg; hz 6.6 × 10–34 js]
Q38. What is the velocity of a - particle?
Q39. What is the value of the force which acts on the liquid surface?
Q40. What is the value of the surface tension of the liquid at the critical temperature.
Q41. What is the value of wave length of electro magnetic wave produced by hertz?
Q42. What is the value of Reynold’s number for the turbulent flow?
Q43. What is the value of refractive index of a medium depends on
Q44. What is the useful energy transfer in a radio?
Q45. What is the use of UV rays?
Q46. What is the use of very high penetrating power of X-ray?
Q47. What is the use of transformer?
Q48. What is the unit of surface tension?
Q49. What is the use of transformer?
Q50. What is the unit of surface tension?