Physics If the velocity-time graph of a particle is represented by y = mt + c, then the particle is moving with Constant speed Constant acceleration Constant velocity Varying acceleration Constant speed Constant acceleration Constant velocity Varying acceleration ANSWER DOWNLOAD EXAMIANS APP
Physics Ozone layer above the surface of Earth provides a shield against Gamma rays X-rays Ultra-violet rays Infra-red rays Gamma rays X-rays Ultra-violet rays Infra-red rays 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. Both the photons have different energies. 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. The wavelength of X-ray photon is less than the wavelength of visible radiation photon. Both the photons have different energies. 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 Which waves cannot be transmitted through vacuum? Electromagnetic Heat Sound Light Electromagnetic Heat Sound Light ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following ray has minimum wavelength X-rays Cosmic ray Utraviolet ray Gamma ray X-rays Cosmic ray Utraviolet ray Gamma ray ANSWER DOWNLOAD EXAMIANS APP
Physics Railway tracks are banked on curves so that Necessary centripetal force may be obtained from the horizontal component of the weight of the train No frictional force may be produced between the tracks and the wheels of the train Necessary centrifugal force may be obtained from the horizontal component of the weight of the train The train may not fall down inwards Necessary centripetal force may be obtained from the horizontal component of the weight of the train No frictional force may be produced between the tracks and the wheels of the train Necessary centrifugal force may be obtained from the horizontal component of the weight of the train The train may not fall down inwards ANSWER DOWNLOAD EXAMIANS APP
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