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Khub.info Learn TNPSC exam and online pratice
Q1. For a short sighted person
Q2. For a given prism, the angle of deviation of each colour is independent of
Q3. For a given amount of energy released, which fuel releases the most quantity of carbon dioxide?
Q4. Focal lengths of objective and eye piece of a telescope are 200 cm and 4 cm respectively. What is the length of telescope for normal adjustment?
Q5. Focal length of a curved mirror depends on
Q6. Fleming’s right hand rule is also known as .............
Q7. Fleming’s left hand rule is used to find the direction of ...........
Q8. Find the correct statement with reference to solar cell.
Q9. Falling of a person, getting down from a moving bus can be explained on the basis of Newton’s
Q10. Evaporation occurs at
Q11. Energy released per fission is ...........
Q12. Energy can neither be created nor be destroyed, is a statement of the
Q13. Energy available from the ocean is
Q14. EM satisfies all the phenomena of ...........
Q15. Electrons that move very easily from one atom to another are called .......... electrons.
Q16. Electromagnetic waves are
Q17. Electro magnets are based on the principle of
Q18. Electric power is defined as
Q19. Electric current will stop flowing when the potential difference is
Q20. Electric current is defined as the rate of flow of ............
Q21. Einstein’s mass-energy relation is ...........
Q22. Electric current always flows
Q23. During the phenomena of absorption, light behaves as
Q24. During sunset or sunrise. the sky appears
Q25. During nuclear fission, the chain reaction can be controlled by absorbing excess of ..........
Q26. During lateral inversion the image of an object turns by .............. about vertical axis.
Q27. During interference, light behaves as what?
Q28. During electric power transmission electric energy is dissipated in the form of ...........
Q29. During dispersion, the emergent ray is bent
Q30. Due to which the photographic plate lying near uranium compound is affected?
Q31. Due to very weak inter-atomic force gas molecules.
Q32. Drinking water is purified by treating it with
Q33. Due to the change in relative position of the molecules the body suffers
Q34. Domestic appliances are designed to operate at ...........
Q35. Disadvantage of geothermal energy is
Q36. Dirty clothes having grease and oil stains cannot be washed with water. Why?
Q37. Diffused reflection occurs at a ........ surface.
Q38. Destructive distillation of coal leads to the formation of
Q39. Density of an object is 725 kgm–3, what happens when it is immersed in water?
Q40. Density of aluminium is 2700 kg/m3, what is its relative density?
Q41. Danger signals should be in ......... colour.
Q42. Cyan, yellow and magenta form
Q43. Current produced in a conductor when it moves into a magnetic field is known as
Q44. Current of 7 A flowing through a coil of resistance 60W. The amount of heat produced by this coil is 60 and is ...........kJ.
Q45. CSP stands for
Q46. Current carrying conductor when placed in a magnetic fiold experience a force due to what?
Q47. Continuation of impression of image on the retina is for about ........... of a second even after the object is removed.
Q48. Concave lens is used to correct
Q49. Commercial unit of electrical energy is
Q50. Circular part in the centre of retina of human eye is called
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