Physics Choose the most appropriate answer: In which atmospheric layer are the communication satellites located? Ionosphere Troposphere Mesosphere Stratosphere Ionosphere Troposphere Mesosphere Stratosphere ANSWER DOWNLOAD EXAMIANS APP
Physics The composition of electrician solder is Lead-37%, tin-63% Steel-37%, copper-63% Iron-37%, tin-63% Lead-37%, Steel-63% Lead-37%, tin-63% Steel-37%, copper-63% Iron-37%, tin-63% Lead-37%, Steel-63% 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 frequency of X-ray photon is higher than the frequency of visible radiation photon. Both the photons have different energies. The speeds of both the photons in vacuum are different The wavelength of X-ray photon is less than the wavelength of visible radiation photon. The frequency of X-ray photon is higher than the frequency of visible radiation photon. Both the photons have different energies. The speeds of both the photons in vacuum are different ANSWER DOWNLOAD EXAMIANS APP
Physics Lux is the SI unit of luminous efficiency luminous intensity luminous flux intensity of illumination luminous efficiency luminous intensity luminous flux intensity of illumination ANSWER DOWNLOAD EXAMIANS APP
Physics The basic reason for the extraordinary sparkle of suitably cut diamond is that It has a very high refractive index It has a very high transparency It is very hard It has well defined cleavage planes It has a very high refractive index It has a very high transparency It is very hard It has well defined cleavage planes ANSWER DOWNLOAD EXAMIANS APP
Physics A body of mass 2 kg is thrown upward with initial velocity of 20 m/s. After 2 seconds, its kinetic energy will be : (g = 10 m/s2) 100 J 0 J 200 J 400 J 100 J 0 J 200 J 400 J ANSWER DOWNLOAD EXAMIANS APP
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