Physics Which of the following is the fastest communication channel? Optical fiber All are operating at nearly the same propagation speed Radio wave Microwave Optical fiber All are operating at nearly the same propagation speed Radio wave Microwave ANSWER DOWNLOAD EXAMIANS APP
Physics Which is evidence that supports the dynamo theory? Earth's outer core contains liquid that conducts electricity Granite and basalt conduct electricity Convection occurs in Earth's inner core Earth's core contains a large amount of iron Earth's outer core contains liquid that conducts electricity Granite and basalt conduct electricity Convection occurs in Earth's inner core Earth's core contains a large amount of iron ANSWER DOWNLOAD EXAMIANS APP
Physics Water is used in car radiator because of its Easy availability High specific heat capacity Low boiling point Low density Easy availability High specific heat capacity Low boiling point Low density ANSWER DOWNLOAD EXAMIANS APP
Physics A photon of X-ray has energy of 1 keV. A photon of visible radiation has energy of 3 eV. In this context, which one of the following statements is not correct? Both the photons have different energies. The wavelength of X-ray photon is less than the wavelength of visible radiation photon. The speeds of both the photons in vacuum are different The frequency of X-ray photon is higher than the frequency of visible radiation photon. Both the photons have different energies. The wavelength of X-ray photon is less than the wavelength of visible radiation photon. The speeds of both the photons in vacuum are different The frequency of X-ray photon is higher than the frequency of visible radiation photon. ANSWER DOWNLOAD EXAMIANS APP
Physics An object at rest may have Potential energy Velocity Momentum Kinetic energy Potential energy Velocity Momentum Kinetic energy ANSWER DOWNLOAD EXAMIANS APP
Physics Which one type of radiation has the longest wave length Infrared Ultraviolet X-ray Radio Wave Infrared Ultraviolet X-ray Radio Wave ANSWER DOWNLOAD EXAMIANS APP
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