Physics Which of the following parts of the sunlight makes the solar cooker hot ? Infra red Red light Cosmic rays Ultra violet Infra red Red light Cosmic rays Ultra violet ANSWER DOWNLOAD EXAMIANS APP
Physics The force of friction between two surfaces will increase if: The two surfaces are pressed harder Air gap is created between the two surfaces Irregularities on both the surfaces are removed A layer of lubricant is kept between the two surfaces The two surfaces are pressed harder Air gap is created between the two surfaces Irregularities on both the surfaces are removed A layer of lubricant is kept between the two surfaces ANSWER DOWNLOAD EXAMIANS APP
Physics What is the size of Electron as comapared to Proton and Neutron? 8402 1/1236 1/1836 1/355 8402 1/1236 1/1836 1/355 ANSWER DOWNLOAD EXAMIANS APP
Physics A periscope works on the principle of Refraction Diffraction Reflection Total internal reflection Refraction Diffraction Reflection Total internal reflection ANSWER DOWNLOAD EXAMIANS APP
Physics If a body moves with a constant speed in a circle Its velocity remains constant No work is done on it No force acts on it No acceleration is produced in it Its velocity remains constant No work is done on it No force acts on it No acceleration is produced in it 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 : Metals are good conductors of heat Plastics have a lower density than metals Plastics have a higher thermal conductivity than metals Metals have higher thermal capacity than plastics Metals are good conductors of heat Plastics have a lower density than metals Plastics have a higher thermal conductivity than metals Metals have higher thermal capacity than plastics ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS