Physics Bats can sense obstacles because they produce Infrasonic sound waves Micro sound waves Ultrasonic sound waves Supersonic sound waves Infrasonic sound waves Micro sound waves Ultrasonic sound waves Supersonic sound waves ANSWER DOWNLOAD EXAMIANS APP
Physics On a rainy day, small oil films on water show brilliant colours. This is due to interference diffraction dispersion polarization interference diffraction dispersion polarization ANSWER DOWNLOAD EXAMIANS APP
Physics Negative feedback in amplifiers Increases bandwidth and increases noise Increases bandwidth and decreases noise Decreases bandwidth and decreases noise Decreases bandwidth and increases noise Increases bandwidth and increases noise Increases bandwidth and decreases noise Decreases bandwidth and decreases noise Decreases bandwidth and increases noise ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following device is best suited for measuring the temperature inside metallurgical furnaces? Thermistor Pyrometer Thermometer Thermocouple Thermistor Pyrometer Thermometer Thermocouple ANSWER DOWNLOAD EXAMIANS APP
Physics A falling drop of rain water acquires the spherical shape due to Surface Tension Atmospheric pressure Viscosity Gravitational force Surface Tension Atmospheric pressure Viscosity Gravitational force ANSWER DOWNLOAD EXAMIANS APP
Physics RADAR is used for: receiving a signals in a radio receiver. detecting and locating the position of objects such as Aeroplanes. locating submerged submarines. locating geostationary satellites. receiving a signals in a radio receiver. detecting and locating the position of objects such as Aeroplanes. locating submerged submarines. locating geostationary satellites. ANSWER DOWNLOAD EXAMIANS APP
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