Gk question answer in English set-2

 

Gk question answer in English set-2

1. Which is India's first nuclear power plant? 

Ans : Tarapur

 

2.The value of gravitational acceleration at high altitudes above the surface of the Earth –

 Ans: decreases

3.Germanium and Silicon are – 

Ans : Semiconductors

4.Which compound exhibits paramagnetic behavior?

 Ans : CO₂

 

5.Which scientist prepared the first diamond?

 Ans : Moysa

 

6.What is changed in the rectifier? 

Ans : AC to DC

7. If a pendulum is oscillated in water, its period of oscillation will decrease. Which is not an electromagnetic wave?

 Ans : Sound waves

8. The resistance of which decreases when the temperature increases? 

Ans : Silicon

 

9.What is the automotive viewfinder?

 Ans : Convex mirror

10. Radioactive decay of uranium produces- 

Ans : Lead

 

11.Primary colors of light rays- 

Ans : Red, Blue, Green

 

12.The boiling point of liquid oxygen is -183 degreeC, on Fahrenheit scale it will be- 

Ans : -297 degree

13. The two faces of a tube are sealed airtight. Enclosed air pressure-

 Ans : equal to atmospheric pressure

14.  Who is Lombard theory associated with? 

Ans : Ignition

 

15.  What is the average velocity of air molecules in m/s? 

Ans : 400

 

16.  Whose ore is 'galena'? 

Ans : Lead

17.   Who invented the balloon? 

Ans : Montegolfia

 

18.  What is the color of pure iron? 

Ans : Gray white

19.   What was used as rocket fuel in ancient times?

 Ans : Gunpowder

20.What is used to observe planets and stars in space?

 Ans : Telescope

21.   Which of the following metals is the lightest? 

Ans : Lithium

 

22. Amalgam is a mixture of —– with another metal-

 Ans : Mercury

 

23. Which particle present in all atoms was identified first? 

Ans : Electron

24.Which thermometer can measure rapidly changing temperatures?

 Ans : Thermocouple thermometer

25. What is the maximum value of frictional force known as?

 Ans : Limiting friction

26. Who did the alpha particle scattering experiment? 

Ans : Arnett Rutherford

27.  What is the principle of rocket launch?

 Ans : Law of conservation of momentum

 

28. 1 gram of steam at 100°C can melt how many grams of ice at 0°C?

 Ans : 8 grams

29. How many atoms are there in one molecule of sulfur? 

Ans : Eight

30. What kind of substance is silicon?

 Ans : Semiconductor

31. Which is an alloy? 

Ans : Bronze

 32. What type of crane is the lever?

 Ans : Third

33. What is the source of magnesium?

 Ans : Carnalite

34.Which one conducts electricity?

 Ans : The gas is carbon

35. The most abundant element in the universe is – 

Ans : Hydrogen

36. Speed ​​of a sewing machine – 

Ans : Rotation

 

37. The spectrum produced by the ejection of electrons from hydrogen atoms in the ultraviolet region is called-

  Ans : Bamar phase spectrum

38. What kind of force does work on a clock spring? 

Ans : Stability

 

39.'Hubble' is a –

 Ans : Space Telescope

40. A small amount of copper or silver is added to the senna to make the senna ——

Ans: Difficult

41.  What is at both ends of the telescope tube? 

Ans : Convex lens

42.  According to Darwin the unit of natural selection is – 

Ans : Species

43. 'Titan' is - 

Ans: Saturn's largest moon

44. X – ray cannot pass through-

 Ans : bone

45. Which of these is not a measuring device? 

Ans : Picometer

46.The mass of positron is equal to the mass of which of the following? 

Ans : Electron

 47. What is the S.I. unit of measurement of surface tension of a liquid?

 Ans : Newton / meter

48. The process in which minerals are heated intensely in the presence of air is called -

 Ans : Calcination

49. When light falls on any metal, its resistance decreases? 

Ans : Selenium

50. An instrument used to measure the relative importance of liquids is called -

 Ans : Hygrometer

 

51. For which religion of light, rubbing in water makes it transparent? 

Ans : Refraction

52. Which behaves as both a metal and a nonmetal?

 Ans : Boron

 

53.What is the value of universal gas constant?

 Ans : 8.3 JK -1 Mole-1 

54.What is the source of the energy released in the hydrogen atom?

 Ans : Combination

 

55. Clear sky is cooler than cloudy sky because of –

 Ans : Radiation 

56. What type of mirror should be used to obtain parallel lines of light emitted from a small lamp? 

Ans : Concave

57. The inert gas with lowest boiling point is- 

Ans : Xenon

58.The filament of electric bulb is made of which metal?

 Ans : Tungsten

59.Who is the discoverer of X-rays?

 Ans : Roentgen

 60. What is the unit of 'Kuri'?

 Ans : Radioactivity

 61. Among the following metals whose polymorphism is seen?

 Ans : Tin

 

62.A fuse wire-

 Ans: High conductivity and low melting point

63. Which of the following substances is a good conductor of heat, but an insulator of electricity?

 Ans : Abra

64. What is the name of the most electro-negative element? 

Ans : Fluorine

65. Which of the three atomic elements has the least mass?

 Ans : Electron

66. What is the name of the most reactive element of halogen group?

 Ans: Oxygen

 

67.What is the temperature of the ice?

 Ans : -23 ° C

68. Which of the following is not an example of metallurgy?

 Ans : Zinc

 

69.Who was the creator of Ashtaka Sutra? 

Ans : Newland

70. Which phase of the periodic table is incomplete?

 Ans: Seventh

 

71.Who discovered the chromium positron particle? 

Ans : Anderson

72. What gas is inside the electric bulb?

 Ans : Nitrogen

73. What is the name of the heat applied to an object which changes its state without increasing its temperature?

 Ans : Lean heat

74. At how many degrees of temperature will the Fahrenheit scale reading be five times the Centigrade scale reading?

 Ans : I0 degrees

 

75.What is the technique of preparing and recording quarterly pictures called?

 Ans : Holography