Physics What is the minimum distance (in metres) required to hear an echo? 13 17 10 21 13 17 10 21 ANSWER DOWNLOAD EXAMIANS APP
Physics The Capacity of a communication channel is measured in Band width Data flow Bit capacity Band rate Band width Data flow Bit capacity Band rate ANSWER DOWNLOAD EXAMIANS APP
Physics What is the reason for twinkling of stars ? Atmospheric reflection Dispersion of light Atmospheric refraction Total internal reflection Atmospheric reflection Dispersion of light Atmospheric refraction Total internal reflection ANSWER DOWNLOAD EXAMIANS APP
Physics The colours of stars depend on their Atmospheric pressure Temperature Radius Distance Atmospheric pressure Temperature Radius Distance ANSWER DOWNLOAD EXAMIANS APP
Physics If ice floating on water in a vessel melts, the water level in the vessel ________ . Decreases Increases Does not change First increases before decreasing Decreases Increases Does not change First increases before decreasing ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier to carry two buckets of water in one hand each, than to carry only one in one hand because Centre of gravity and centre of equilibrium fall within the feet Weights of buckets are balanced Centre of gravity falls within the body Resultant weight of buckets is zero Centre of gravity and centre of equilibrium fall within the feet Weights of buckets are balanced Centre of gravity falls within the body Resultant weight of buckets is zero ANSWER DOWNLOAD EXAMIANS APP