Physics On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because : Plastics have a higher thermal conductivity than metals Plastics have a lower density than metals Metals have higher thermal capacity than plastics Metals are good conductors of heat Plastics have a higher thermal conductivity than metals Plastics have a lower density than metals Metals have higher thermal capacity than plastics Metals are good conductors of heat ANSWER DOWNLOAD EXAMIANS APP
Physics The dimension MLT–2 corresponds to Force Velocity Work done Acceleration Force Velocity Work done Acceleration ANSWER DOWNLOAD EXAMIANS APP
Physics In very cold countries alcohol is used as a thermometric liquid because Its freezing point is very low It will not stick to the glass tube Alcohol is a poor conductor of heat Alcohol can be coloured for its level to be seen easily Its freezing point is very low It will not stick to the glass tube Alcohol is a poor conductor of heat Alcohol can be coloured for its level to be seen easily ANSWER DOWNLOAD EXAMIANS APP
Physics A man standing at the top of a tower has two spheres A and B. He drops sphere A downwards and throws sphere B horizontally at the same time. Which of the following is correct ? B will reach the ground first. Both the spheres will reach the ground simultaneously. A will reach the ground first. The question is incomplete because the masses of the spheres are not given. B will reach the ground first. Both the spheres will reach the ground simultaneously. A will reach the ground first. The question is incomplete because the masses of the spheres are not given. ANSWER DOWNLOAD EXAMIANS APP
Physics The different colours of different stars are due to the variation of Radiation from them Density Temperature Pressure Radiation from them Density Temperature Pressure ANSWER DOWNLOAD EXAMIANS APP
Physics The speed of sound travel fastest through Gas Liquid None of these Solid Gas Liquid None of these Solid ANSWER DOWNLOAD EXAMIANS APP
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