Physics Red light is used for signals because it has High intensity High frequency Low refraction in the medium Long wavelength High intensity High frequency Low refraction in the medium Long wavelength ANSWER DOWNLOAD EXAMIANS APP
Physics Stars appears to move from east to west because The earth rotates from west to east All stars move from east to west The background of the stars moves from west to east The earth rotates from east to west The earth rotates from west to east All stars move from east to west The background of the stars moves from west to east The earth rotates from east to west ANSWER DOWNLOAD EXAMIANS APP
Physics Natural radioactivity was discovered by Enrico Fermi Ernest Rutherfor Henri Becquerel Marie Curie Enrico Fermi Ernest Rutherfor Henri Becquerel Marie Curie 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 Where do the electrical charges reside in a charged conductor? Depended upon the nature of the body At the core Outer surface of the body Throughout the body Depended upon the nature of the body At the core Outer surface of the body Throughout the body ANSWER DOWNLOAD EXAMIANS APP
Physics Night photography and photopraphy in mist and fog are possible using Infra-red radiation Gamma radiation Microwave radiation Ultra-violet radiation Infra-red radiation Gamma radiation Microwave radiation Ultra-violet radiation ANSWER DOWNLOAD EXAMIANS APP
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