Physics Tungsten is used for the manufacture of the filament of an electric bulb, because It has a very high melting point It is a good conductor It is malleable It is economical It has a very high melting point It is a good conductor It is malleable It is economical ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier to roll a barrel full of coal tar than to pull it because the full weight of the barrel comes into play when it is pulled coal tar is a liquid and it flows in the barrel when it is rolled more surface area of the barrel is in contact with the road when it is pulled the rolling friction is much less than the sliding friction the full weight of the barrel comes into play when it is pulled coal tar is a liquid and it flows in the barrel when it is rolled more surface area of the barrel is in contact with the road when it is pulled the rolling friction is much less than the sliding friction ANSWER DOWNLOAD EXAMIANS APP
Physics Speed of sound is the greatest in : Glycerine Glass Air Water Glycerine Glass Air Water ANSWER DOWNLOAD EXAMIANS APP
Physics A circular plate, a cube and a sphere, all made up of same material and having the samemass, are heated to 300°C and left in a room. Which of them will have the slowest rate of cooling? Circular plate All will cool at the same rate Sphere Cube Circular plate All will cool at the same rate Sphere Cube ANSWER DOWNLOAD EXAMIANS APP
Physics A body of mass 5 kg accelerates from 12 m/s to 20 m/s in 4 seconds due to the application of a force on it. Calculate the magnitude of this force (in N). 80 40 20 10 80 40 20 10 ANSWER DOWNLOAD EXAMIANS APP
Physics The safest hammers are those with heads that are Welded and alloyed Cast steel and chiseled Alloy and drop-forged steel Chiseled and drop forged Welded and alloyed Cast steel and chiseled Alloy and drop-forged steel Chiseled and drop forged ANSWER DOWNLOAD EXAMIANS APP
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