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 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 Accidents due to contraction in winter can be avoided ANSWER DOWNLOAD EXAMIANS APP
Physics Coolis tube is used to produce Gama rays Micro waves X-rays Radio waves Gama rays Micro waves X-rays Radio waves ANSWER DOWNLOAD EXAMIANS APP
Physics The velocity of sound in air Decreases with decrease of temperature Does not depend on temperature Increases with decrease of temperature Decreases with increase of temperature Decreases with decrease of temperature Does not depend on temperature Increases with decrease of temperature Decreases with increase of temperature ANSWER DOWNLOAD EXAMIANS APP
Physics Why does a cannon recoil after firing ? Newton's third law of motion Newton's first law of motion Backward thrust of gases produced Conservation of energy Newton's third law of motion Newton's first law of motion Backward thrust of gases produced Conservation of energy ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following waves cannot be polarised? Ultrasonic Radio Infrared Ultra violet Ultrasonic Radio Infrared Ultra violet ANSWER DOWNLOAD EXAMIANS APP
Physics ML2T-2 is the dimensional formula for couple acting on a body pressure elasticity moment of inertia couple acting on a body pressure elasticity moment of inertia ANSWER DOWNLOAD EXAMIANS APP
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