91. The Helium atoms that have lost two electrons are called ________? A. Alpha rays B. Beta rays C. Gamma

81. When two mercury drops are brought into contact they form a single bigger drop to get which of the

71. A person who is pulling a bucket filled with water falls behind with the sudden break of the rope.

61. Which among the following is the science dealing with Colors? A. Optics B. Chromatics C. Ophthalmology D. Otology Answer

51. Which among the following temperature scale is based upon absolute zero? A. Celsius B. Fahrenheit C. Kelvin D. Rankine

41. In context with electromagnetism, which among the following is a correct definition of Permeability? A. Ability of a material

31. Which among the following strictly works on the principle of dipole movement of the water molecules? A. Microwave Oven

21. In many countries with cold climates, the municipalities often sprinkle salt on icy roads in winter. A. The Salt