Physics Electromagnetic waves are transverse in nature is evident by Reflection Polarisation Interference Diffraction Reflection Polarisation Interference Diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics To resolve an object in an electron microscope, Both A & B None of these The wavelength of the electrons must be close to the diameter of the object The wavelength of the electrons must be greater than the diameter of the object. Both A & B None of these The wavelength of the electrons must be close to the diameter of the object The wavelength of the electrons must be greater than the diameter of the object. ANSWER DOWNLOAD EXAMIANS APP
Physics Megahertz is a measurement of Wavelength Speed Capacity Frequency Wavelength Speed Capacity Frequency ANSWER DOWNLOAD EXAMIANS APP
Physics Who enunciated the laws of planetary motion? Johannes Kepler Nicolaus Copernicus Galileo Isaac Newton Johannes Kepler Nicolaus Copernicus Galileo Isaac Newton ANSWER DOWNLOAD EXAMIANS APP
Physics The GPS device in an automobile uses which communication channel? Microwave Radio frequency Satellite Infrared Microwave Radio frequency Satellite Infrared ANSWER DOWNLOAD EXAMIANS APP
Physics Why are we able to hear short wave broadcasts better than long wave broadcasts ? 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 waves are more energetic than long waves. Short wave broadcasts are made by nearby radio stations. 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 waves are more energetic than long waves. Short wave broadcasts are made by nearby radio stations. ANSWER DOWNLOAD EXAMIANS APP
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