Physics Which of the following devices can be used to detect radiant heat ? Six's maximum and minimum thermometer Liquid thermometer Constant volume air thermometer Thermopile Six's maximum and minimum thermometer Liquid thermometer Constant volume air thermometer Thermopile ANSWER DOWNLOAD EXAMIANS APP
Physics Why two thin shirts can keep us warmer than a single thick shirt in winter ? No radiation of heat takes place Air layer between two shirts behaves like insulating media Two thin shirts become thicker so prevent transmission of heat Air layer between two shirts works as good conductor No radiation of heat takes place Air layer between two shirts behaves like insulating media Two thin shirts become thicker so prevent transmission of heat Air layer between two shirts works as good conductor 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 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 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. ANSWER DOWNLOAD EXAMIANS APP
Physics Photon is the fundamental unit/quantum of Gravitation Magnetism Light Electricity Gravitation Magnetism Light Electricity ANSWER DOWNLOAD EXAMIANS APP
Physics Gamma rays are emitions that have Charge but no mass Mass but no charge Both mass and charge Neither mass nor charge Charge but no mass Mass but no charge Both mass and charge Neither mass nor charge ANSWER DOWNLOAD EXAMIANS APP
Physics The direction of heat flow between two objects depends on Their heat contents Whether they are in solid, liquid or gaseous state Their temperatures Their masses Their heat contents Whether they are in solid, liquid or gaseous state Their temperatures Their masses ANSWER DOWNLOAD EXAMIANS APP
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