Physics What is the minimum distance (in metres) required to hear an echo? 10 13 21 17 10 13 21 17 ANSWER DOWNLOAD EXAMIANS APP
Physics Sound travels fastest in Water Vacuum Glass Air Water Vacuum Glass Air ANSWER DOWNLOAD EXAMIANS APP
Physics 1 m/s equals ________ km/hr 43969 16/5 18/5 43967 43969 16/5 18/5 43967 ANSWER DOWNLOAD EXAMIANS APP
Physics To measure the speed of an approaching car a police officer shines Radio waves on it Ultra high frequency waves on it Light waves on it Microwaves on it Radio waves on it Ultra high frequency waves on it Light waves on it Microwaves on it ANSWER DOWNLOAD EXAMIANS APP
Physics Two metallic wires made from copper have same length but the radius of wire 1 is half of that of wire 2. The resistance of wire 1 is R. If both the wires are joined together in series, the total resistance becomes 2R R/2 3R/4 5R/4 2R R/2 3R/4 5R/4 ANSWER DOWNLOAD EXAMIANS APP
Physics In which of the following cases, kinetic energy is being used in performing work ? Wind mill grinding wheat grain Driving a car to cover a distance Rowing a boat in the lake Paddling the bicycle to cover a distance Wind mill grinding wheat grain Driving a car to cover a distance Rowing a boat in the lake Paddling the bicycle to cover a distance ANSWER DOWNLOAD EXAMIANS APP
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