Physics Sound travels with a different speed in media. In what order does the velocity of sound increase in these media? Air, water and iron Iron, air and water Iron, water and air Water, iron and air Air, water and iron Iron, air and water Iron, water and air Water, iron and air ANSWER DOWNLOAD EXAMIANS APP
Physics Fuse wire is made of an alloy of Lead and Copper Tin and Copper Tin and Lead Copper and Silver Lead and Copper Tin and Copper Tin and Lead Copper and Silver ANSWER DOWNLOAD EXAMIANS APP
Physics A small drop of oil spreads over water because : Oil has a higher surface tension Water has a higher surface tension Oil has a higher viscosity Water has a higher viscosity Oil has a higher surface tension Water has a higher surface tension Oil has a higher viscosity Water has a higher viscosity ANSWER DOWNLOAD EXAMIANS APP
Physics In the remote control of television, electromagnetic waves used are Radiowave Microwave Ultraviolet Infrared Radiowave Microwave Ultraviolet Infrared ANSWER DOWNLOAD EXAMIANS APP
Physics The energy of a photon varies directly with its None of these Wave length Frequency Speed None of these Wave length Frequency Speed ANSWER DOWNLOAD EXAMIANS APP
Physics The threshold frequency is the frequency below which : Photo current decreases with voltage Photo current increases with voltage Photo electric emission is not possible Photo current is constant Photo current decreases with voltage Photo current increases with voltage Photo electric emission is not possible Photo current is constant ANSWER DOWNLOAD EXAMIANS APP
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