Physics In a railway track, two rails are joined end to end with a gap in between them because Air-gaps are necessary for bearing the weight of running train Accidents due to expansion in summer can be avoided Steel can be saved Accidents due to contraction in winter can be avoided Air-gaps are necessary for bearing the weight of running train Accidents due to expansion in summer can be avoided Steel can be saved Accidents due to contraction in winter can be avoided ANSWER DOWNLOAD EXAMIANS APP
Physics In which of the following processes is energy released ? Photosynthesis Ingestion Respiration Absorption Photosynthesis Ingestion Respiration Absorption ANSWER DOWNLOAD EXAMIANS APP
Physics 1 WH = 3600 joules 36 joules 36000 joules 360 joules 3600 joules 36 joules 36000 joules 360 joules ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following has the shortest wavelength? Gamma rays Infrared rays Microwaves Radio waves Gamma rays Infrared rays Microwaves Radio waves ANSWER DOWNLOAD EXAMIANS APP
Physics Lux is the SI unit of luminous intensity luminous efficiency intensity of illumination luminous flux luminous intensity luminous efficiency intensity of illumination luminous flux ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier to roll a barrel full of coal tar than to pull it because coal tar is a liquid and it flows in the barrel when it is rolled the rolling friction is much less than the sliding friction more surface area of the barrel is in contact with the road when it is pulled the full weight of the barrel comes into play when it is pulled coal tar is a liquid and it flows in the barrel when it is rolled the rolling friction is much less than the sliding friction more surface area of the barrel is in contact with the road when it is pulled the full weight of the barrel comes into play when it is pulled ANSWER DOWNLOAD EXAMIANS APP
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