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Khub.info Learn TNPSC exam and online pratice
Q1. Chances of death are caused by the radiation of
Q2. Centigrade and Fahrenheit scale give same reading at
Q3. Cell phones make use of
Q4. Cellular phones use radio waves in
Q5. Calculate the work done in moving a charge of 5C across the potential difference of 13 V
Q6. By how much time sunset delays due to atmospheric refraction?
Q7. By what technique, the age of relics is estimated?
Q8. Bohr’s atom model could not explain ...............
Q9. Bodies that radiate light are called
Q10. Biogas is a
Q11. Bio gas is produced from the mixture of
Q12. Bernoulli’s theorem is a consequence of the law of conservation of
Q13. Because of the inter-atomic force the atoms in solids
Q14. Bats use which frequency for navigation and locate food in darkness?
Q15. Based on internal structure, solids are classified into how many types?
Q16. Barometers modified to measure the height above the sea level are called
Q17. Atmosphere
Q18. b - rays can be stopped by ............
Q19. At what angle must two plane mirrors be placed so that the incident and reflected rays are always parallel to each other?
Q20. At the time of short circuit. the current in the circuit
Q21. At the time of short circuit, the current in the circuit
Q22. At hydro electric power station K.E of water is converted into .... energy.
Q23. At any instant what does a particle possess?
Q24. At a height of 12800 km from the centre of the earth what is the value of g?
Q25. Asteroids are also called
Q26. As compared to boiling, evaporation is a
Q27. As an object falls freely. the K.E of the object
Q28. Arrange the radioactive radiations in the increasing order of ionizing power.
Q29. Aqueous humor is present between
Q30. An object thrown with horizontal velocity 42 ms hits the ground in 10 s, what is the range ?
Q31. An object weighing 10 N is lifted from the ground to a height of 0.44m. What is the increase in gravitation P.E?
Q32. An object released from a certain height with a velocity of 40.2 m/s reaches the ground in a time interval.
Q33. An object of 50 kg is moving with a speed of 20 m/s, the state of rest or motion till any momentum of the object is
Q34. An object moves with uniform motion. What will be the acceleration?
Q35. An object is placed at a distance of 10 cm from convex lens of focal length 15 cm. Find the position and nature of the image.
Q36. An object falling with a velocity of 39.4 m/s. Find the height from where it is dropped?
Q37. An object cannot change the state of rest or motion till any force is not applied due to
Q38. An hypermetropic eye cannot see objects at
Q39. An incident ray strikes a plane mirror at angle of 20 degree, what is the angle between the reflected ray and the mirror?
Q40. An expression for centripetal force is
Q41. An explosion on the moon cannot be heard
Q42. An electron enters a uniform magnetic field along X-axis perpendicularly with a velocity along Y-axis. In what direction will it deflect?
Q43. An electromagnet can be demagnetized by
Q44. An electric train is moving with a velocity of 120 km/hr. How much distance will it move in 30 sec?
Q45. An electric short circuit does not occur when the .............
Q46. An electric short circuit does not occur when the ..........
Q47. An electric lamp is 25% efficient. It receives 100J per second of electrical energy, how much of this is transferred as light energy?
Q48. An electric heater is rated 1500 W. How much energy does it use in 10 hrs?
Q49. An electric heater is connected to an ideal cell. The work done by the cell is ......... heat generated by the heater.
Q50. An electric charge in uniform motion produces
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