Physics The minimum number of geostationary satellites needed for uninterrupted global coverage is : 4 2 1 3 4 2 1 3 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? 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. Both the photons have different energies. ANSWER DOWNLOAD EXAMIANS APP
Physics What principle/law explains the working of the hydraulic brakes in automobiles ? Bernoulli's law Archimedes' principle Pascal's law Posieulle's principle Bernoulli's law Archimedes' principle Pascal's law Posieulle's principle ANSWER DOWNLOAD EXAMIANS APP
Physics Why does the sea appear blue in colour? Scattering of the sunlight by water molecules Interference of the sun light from water surface Reflection of the sun light from water surface Refraction of the sun light Scattering of the sunlight by water molecules Interference of the sun light from water surface Reflection of the sun light from water surface Refraction of the sun light ANSWER DOWNLOAD EXAMIANS APP
Physics When pressure is increased the melting point of ice Increases Depends on the impurities in the ice Decreases Does not change Increases Depends on the impurities in the ice Decreases Does not change ANSWER DOWNLOAD EXAMIANS APP
Physics The temperature at which water boils depends mainly on Air Pressure Density Relative humidity Specific heat Air Pressure Density Relative humidity Specific heat ANSWER DOWNLOAD EXAMIANS APP
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