Physics In a Carnot engine when heat is taken from the source, its temperature Decreases and then remains constant Decreases Remains constant Increases Decreases and then remains constant Decreases Remains constant Increases ANSWER DOWNLOAD EXAMIANS APP
Physics When a ball is thrown vertically upwards, which of the following quantities remains constant during its motion? Acceleration Velocity Displacement Energy Acceleration Velocity Displacement Energy ANSWER DOWNLOAD EXAMIANS APP
Physics Heat energy is transferred by conduction whenever molecules Particles replaces there places Means of photons All of these Collide each other Particles replaces there places Means of photons All of these Collide each other ANSWER DOWNLOAD EXAMIANS APP
Physics The time period of a seconds pendulum is 0.5 second 1.5 second 1 second 2 seconds 0.5 second 1.5 second 1 second 2 seconds ANSWER DOWNLOAD EXAMIANS APP
Physics In a refrigerator, the cooling system should always be Can be anywhere At the middle At the bottom At the top Can be anywhere At the middle At the bottom At the top 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? Cube Circular plate All will cool at the same rate Sphere Cube Circular plate All will cool at the same rate Sphere ANSWER DOWNLOAD EXAMIANS APP
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