Physics Why are we able to hear short wave broadcasts better than long wave broadcasts ? Short wave broadcasts are made by nearby radio stations. Short waves are more energetic than long waves. By convention, short waves are meant for long distances, whereas long waves are reserved for short distances. Short waves are unaffected by atmospheric disturbances. Short wave broadcasts are made by nearby radio stations. Short waves are more energetic than long waves. By convention, short waves are meant for long distances, whereas long waves are reserved for short distances. Short waves are unaffected by atmospheric disturbances. ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following property of sound is affected by change in air temperature? Intensity Frequency Wavelength Amplitude Intensity Frequency Wavelength Amplitude ANSWER DOWNLOAD EXAMIANS APP
Physics The waveform of a certain signal can be studied by Spectrometer Sonometer Cathode ray oscilloscope P – n junction diode Spectrometer Sonometer Cathode ray oscilloscope P – n junction diode ANSWER DOWNLOAD EXAMIANS APP
Physics Rate of change of momentum is Area Pressure Force Velocity Area Pressure Force Velocity ANSWER DOWNLOAD EXAMIANS APP
Physics Lakes freeze in cold countries in winter, leaving the water underneath at 0°C 4°C 0°F 4°F 0°C 4°C 0°F 4°F ANSWER DOWNLOAD EXAMIANS APP
Physics The amount of matter in a ball of steel is its : Weight Mass Density Volume Weight Mass Density Volume ANSWER DOWNLOAD EXAMIANS APP
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