Physics What will happen if an object is dropped from a height and there is no air resistance? Its acceleration will increase Its speed will increase Both speed and acceleration will increase It will fall with a constant speed and acceleration Its acceleration will increase Its speed will increase Both speed and acceleration will increase It will fall with a constant speed and acceleration ANSWER DOWNLOAD EXAMIANS APP
Physics The splitting of different colours of light in a prism is : Diffraction of light Reflection of light Disperson of light Refraction of light Diffraction of light Reflection of light Disperson of light Refraction of light ANSWER DOWNLOAD EXAMIANS APP
Physics Planets do not twinkle because Their distance from the earth does not change with time They emit light of a constant intensity They are nearer to earth and hence we receive a greater amount of light. They are very far away from the earth resulting in decrease in intensity of light Their distance from the earth does not change with time They emit light of a constant intensity They are nearer to earth and hence we receive a greater amount of light. They are very far away from the earth resulting in decrease in intensity of light ANSWER DOWNLOAD EXAMIANS APP
Physics Which electromagnetic radiation is used for satellite communication ? Infrared Millimeter wave Radiowave Ultraviolet Infrared Millimeter wave Radiowave Ultraviolet ANSWER DOWNLOAD EXAMIANS APP
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 Metals are good conductors of heat Plastics have a lower density than metals Metals have higher thermal capacity than plastics Plastics have a higher thermal conductivity than metals Metals are good conductors of heat Plastics have a lower density than metals Metals have higher thermal capacity than plastics ANSWER DOWNLOAD EXAMIANS APP
Physics What colour does blue and yellow make? Black White Green Red Black White Green Red ANSWER DOWNLOAD EXAMIANS APP