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? All will cool at the same rate Circular plate Cube Sphere All will cool at the same rate Circular plate Cube Sphere ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following reflects back more sunlight as compared to other three? Paddy crop land Land covered with fresh snow Prairie land Sand desert Paddy crop land Land covered with fresh snow Prairie land Sand desert ANSWER DOWNLOAD EXAMIANS APP
Physics X–rays are None of these Negatively charged particles Positively charged particles Neutral particles None of these Negatively charged particles Positively charged particles Neutral particles ANSWER DOWNLOAD EXAMIANS APP
Physics Light scattering takes place in Electrolyte solutions Basic solutions Acidic solutions Colloidal solutions Electrolyte solutions Basic solutions Acidic solutions Colloidal solutions ANSWER DOWNLOAD EXAMIANS APP
Physics What happens to a liquid, when the vapour pressure equals the atmospheric pressure? No change The liquid cools The liquid evaporates The liquid boils No change The liquid cools The liquid evaporates The liquid boils ANSWER DOWNLOAD EXAMIANS APP
Physics A parallel-plate capacitor of capacitance C1 is made using two gold plates. Another parallel-plate capacitor of capacitance C2 is made using two aluminium plates with same plate separation, and all the four plates are of same area. If rg and ra are respectively the electrical resistivities of gold and aluminium, then which one of the following relations is correct? C1>C2 C2>C1 C1 = C2 C1pa = C2pg C1>C2 C2>C1 C1 = C2 C1pa = C2pg ANSWER DOWNLOAD EXAMIANS APP
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