Physics Calculate the time period (in seconds) of a sound wave of wavelength 4m traveling with a speed of 500m/s 2000 0.016 0.008 1000 2000 0.016 0.008 1000 ANSWER DOWNLOAD EXAMIANS APP
Physics We feel cool when we sit near the fan, this is because We feel cool when air touches the body. Air vapourises the sweat on our body. Fan cools surrounding air. Fan gives cool air. We feel cool when air touches the body. Air vapourises the sweat on our body. Fan cools surrounding air. Fan gives cool air. ANSWER DOWNLOAD EXAMIANS APP
Physics If the phase difference between two points is 120° for a wave with velocity of 360 m/s and frequency 500 Hz, then path difference between the two points is 1 cm 6 cm 12 cm 24 cm 1 cm 6 cm 12 cm 24 cm ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following has the shortest wavelength? Infrared rays Microwaves Radio waves Gamma rays Infrared rays Microwaves Radio waves Gamma rays ANSWER DOWNLOAD EXAMIANS APP
Physics What will happen if an object is dropped from a height and there is no air resistance? It will fall with a constant speed and acceleration Its acceleration will increase Both speed and acceleration will increase Its speed will increase It will fall with a constant speed and acceleration Its acceleration will increase Both speed and acceleration will increase Its speed will increase ANSWER DOWNLOAD EXAMIANS APP
Physics The scientist who first sent electromagnetic waves to distant places is James Clerk Maxwell Thomas Alva Edison Heinrich Hertz John Logie Baird James Clerk Maxwell Thomas Alva Edison Heinrich Hertz John Logie Baird ANSWER DOWNLOAD EXAMIANS APP
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