Physics What is the minimum distance (in metres) required to hear an echo? 10 13 17 21 10 13 17 21 ANSWER DOWNLOAD EXAMIANS APP
Physics Intensity of sound at a point is ____ its distance from the source. directly proportional to inversely proportional to square of directly proportional to square of inversely proportional to directly proportional to inversely proportional to square of directly proportional to square of inversely proportional to ANSWER DOWNLOAD EXAMIANS APP
Physics In a refrigerator, the cooling system should always be At the middle At the bottom At the top Can be anywhere At the middle At the bottom At the top Can be anywhere ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following device is best suited for measuring the temperature inside metallurgical furnaces? Thermometer Thermistor Pyrometer Thermocouple Thermometer Thermistor Pyrometer Thermocouple ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following supports particle nature of photons ? Polarization Diffraction Photoelectric effect Interference Polarization Diffraction Photoelectric effect Interference ANSWER DOWNLOAD EXAMIANS APP
Physics What will happen if an object is dropped from a height and there is no air resistance? Both speed and acceleration will increase Its acceleration will increase It will fall with a constant speed and acceleration Its speed will increase Both speed and acceleration will increase Its acceleration will increase It will fall with a constant speed and acceleration Its speed will increase ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS