Physics Hot water is poured simultaneously in four metallic tumblers painted outside with different paints. After some time the water will be found to have cooled most in the tumbler painted. Shining white Shining black Rough white Rough black Shining white Shining black Rough white Rough black ANSWER DOWNLOAD EXAMIANS APP
Physics Bats can sense obstacles because they produce Supersonic sound waves Micro sound waves Infrasonic sound waves Ultrasonic sound waves Supersonic sound waves Micro sound waves Infrasonic sound waves Ultrasonic sound waves 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 Sphere All will cool at the same rate Cube Circular plate Sphere All will cool at the same rate Cube ANSWER DOWNLOAD EXAMIANS APP
Physics The wave theory of light can explain Comptom effect Photoelectric effect Interference of light Black body spectrum Comptom effect Photoelectric effect Interference of light Black body spectrum ANSWER DOWNLOAD EXAMIANS APP
Physics Why does water tank appear shallower when viewed from the top? Due to reflection Due to diffraction Due to total internal reflection Due to refraction Due to reflection Due to diffraction Due to total internal reflection Due to refraction ANSWER DOWNLOAD EXAMIANS APP
Physics If an object is thrown upwards, what will be its velocity, when it reaches its maximum height? 4.9 m/s 0 m/s 20 m/s 14.7 m/s 4.9 m/s 0 m/s 20 m/s 14.7 m/s ANSWER DOWNLOAD EXAMIANS APP
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