Physics Why do birds not have respiratory trouble at the time of flying at high altitude ? They fly inactively Their lungs are very large They use less oxygen They have extra air sacs They fly inactively Their lungs are very large They use less oxygen They have extra air sacs ANSWER DOWNLOAD EXAMIANS APP
Physics On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because: cohesion of water is greater than its adhesion with glass. mercury is a metal. density of mercury is greater than that of water. cohesion of mercury is greater than its adhesion with glass. cohesion of water is greater than its adhesion with glass. mercury is a metal. density of mercury is greater than that of water. cohesion of mercury is greater than its adhesion with glass. ANSWER DOWNLOAD EXAMIANS APP
Physics In the absence of ozone layer, which rays will enter into atmosphere? Visible Infrared Ultraviolet X-rays Visible Infrared Ultraviolet X-rays ANSWER DOWNLOAD EXAMIANS APP
Physics A device used for converting a.c. into d.c. is called Rectifier Dynamo Induction coil Transformer Rectifier Dynamo Induction coil Transformer ANSWER DOWNLOAD EXAMIANS APP
Physics A wire carrying current is Charged with a type depending upon current strength Negatively charged Neutral Positively charged Charged with a type depending upon current strength Negatively charged Neutral Positively charged ANSWER DOWNLOAD EXAMIANS APP
Physics Which one is the unit of surface tension of a liquid Joule/ mm Electron volt /cm2 Newton /m2 None of these Joule/ mm Electron volt /cm2 Newton /m2 None of these ANSWER DOWNLOAD EXAMIANS APP
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