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 Necessary centrifugal force may be obtained from the horizontal component of the weight of the train The train may not fall down inwards No frictional force may be produced between the tracks and the wheels of the train Necessary centripetal force may be obtained from the horizontal component of the weight 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 No frictional force may be produced between the tracks and the wheels of the train ANSWER DOWNLOAD EXAMIANS APP
Physics A gap is left between two rails of a railway track to accommodate...... of the metal. Linear expansion Volume expansion Areal expansion Apparent expansion Linear expansion Volume expansion Areal expansion Apparent expansion ANSWER DOWNLOAD EXAMIANS APP
Physics Instrument used to study the behaviour of a vibrating string is : Hydrometer Barometer Hygrometer Sonometer Hydrometer Barometer Hygrometer Sonometer ANSWER DOWNLOAD EXAMIANS APP
Physics Golden view of sea shell is due to Reflection Polarization Diffraction Dispersion Reflection Polarization Diffraction Dispersion ANSWER DOWNLOAD EXAMIANS APP
Physics Night photography and photopraphy in mist and fog are possible using Ultra-violet radiation Gamma radiation Microwave radiation Infra-red radiation Ultra-violet radiation Gamma radiation Microwave radiation Infra-red radiation ANSWER DOWNLOAD EXAMIANS APP
Physics To measure the speed of an approaching car a police officer shines Microwaves on it Radio waves on it Light waves on it Ultra high frequency waves on it Microwaves on it Radio waves on it Light waves on it Ultra high frequency waves on it ANSWER DOWNLOAD EXAMIANS APP
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