Physics In a railway track, two rails are joined end to end with a gap in between them because Accidents due to contraction in winter can be avoided Air-gaps are necessary for bearing the weight of running train Steel can be saved Accidents due to expansion in summer can be avoided Accidents due to contraction in winter can be avoided Air-gaps are necessary for bearing the weight of running train Steel can be saved Accidents due to expansion in summer can be avoided ANSWER DOWNLOAD EXAMIANS APP
Physics The wave of theory of light is based on The laws of refraction Huyghens' principle The inverse square law The laws of reflection The laws of refraction Huyghens' principle The inverse square law The laws of reflection ANSWER DOWNLOAD EXAMIANS APP
Physics In general, which is the cause of a sea breeze? Pressure Heat All listed here Specific heat Pressure Heat All listed here Specific heat ANSWER DOWNLOAD EXAMIANS APP
Physics Atomic hydrogen has a life period of A fraction of a second One day One hour One minute A fraction of a second One day One hour One minute ANSWER DOWNLOAD EXAMIANS APP
Physics The velocity of the sound is highest in Air Water Vacuum Metal Air Water Vacuum Metal ANSWER DOWNLOAD EXAMIANS APP
Physics Sound becomes hazardous noise pollution at decibels? Above 120 db Above 80 db Above 50 db Above 30 db Above 120 db Above 80 db Above 50 db Above 30 db ANSWER DOWNLOAD EXAMIANS APP
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