Physics The speed of sound in air depends on None of these Wavelength Temperature Frequency None of these Wavelength Temperature Frequency ANSWER DOWNLOAD EXAMIANS APP
Physics The lift of an aeroplane is caused by Theorem of continuity Law of gravitation Bernouli's theorem Pascel's law Theorem of continuity Law of gravitation Bernouli's theorem Pascel's law ANSWER DOWNLOAD EXAMIANS APP
Physics The number of waves per second in a sound is called ________ of that sound. Velocity Displacement Frequency Acceleration Velocity Displacement Frequency Acceleration ANSWER DOWNLOAD EXAMIANS APP
Physics X–rays are None of these Neutral particles Positively charged particles Negatively charged particles None of these Neutral particles Positively charged particles Negatively charged particles ANSWER DOWNLOAD EXAMIANS APP
Physics Water cannot be used to extinguish fire caused by electric current, because It may cause hydrolysis It may cause electrolysis It may cause electrocution It may spoil the wiring It may cause hydrolysis It may cause electrolysis It may cause electrocution It may spoil the wiring ANSWER DOWNLOAD EXAMIANS APP
Physics A copper disc has a hole. If the disc is heated, the size of the hole No change First increases and than decreases Decreases Increases No change First increases and than decreases Decreases Increases ANSWER DOWNLOAD EXAMIANS APP