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General Science GK

Sl. No.Question - ScienceAnswer
41. The heat required to raise the temperature of 1 kg of a substance through one degree celcius is called? Specific heat.
42. The speed greater than the speed of sound is called? Supersonic speed.
43. Volatile substance that incapacitates for a time by powerfully irritating the eyes, provoking tears is called? Tear gas.
44. Who is the inventor of Dynamite? Alfred B. Nobel.
45. Who discovered life in plants? Jagadish Chandra Bose.
46. The unit used to measure loudness of sound is? Decibel.
47. The smallest part of an element that can take part in a chemical reactiion is called? Atom.
48. Substances used for destroying or stopping growth of micro-organisms in living tissue is calles? Antiseptic.
49. Water that does not form lather with soap easily is called? Hard water.
50. The lines drawn on maps joining the places having same barometic pressure is called? Isobars.
51. Lymph differs from blood in not having? Red Blood Corpuscles.
52. Universal receivers can receive blood from? Groups O, A, B and AB
53. Study of Grass is called? Agrostology.
54. Study of Tumour is called? Oncology.
55. Which physical property will be unaffected with increase in quantity? Density.
56. Velocity of a body is rate of change of its position in a definite direction, True or False? True.
57. Which law is involved in the act of cleaning a carpet by beating it with a stick? First Law of Motion.
58. When the lift is going down with uniform acceleration the apparent weight of a man in a lift is more or less than his real weight? Less.
59. A person presses the earth least when he is? Lying on the ground.
60. Oil spreads over the surface of water because? Oil has less surface tension than water.

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