Physics Stars appear twinkling because of ......... of light. Scattering Reflection Absorption Emission Scattering Reflection Absorption Emission ANSWER DOWNLOAD EXAMIANS APP
Physics Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly Absorb heat from the atmosphere send it towards earth Prevent cold waves from the sky descending on earth Reflect back the heat given by earth Produce heat and radiate it toward earth Absorb heat from the atmosphere send it towards earth Prevent cold waves from the sky descending on earth Reflect back the heat given by earth Produce heat and radiate it toward earth ANSWER DOWNLOAD EXAMIANS APP
Physics Optic fibres are used in : Endoscopy CAT scans X-ray photos Ultrasound scans Endoscopy CAT scans X-ray photos Ultrasound scans ANSWER DOWNLOAD EXAMIANS APP
Physics If objects appear enlarged and inverted in a rear view mirror, then which type of mirror is used? Plane Cylindrical Convex Concave Plane Cylindrical Convex Concave ANSWER DOWNLOAD EXAMIANS APP
Physics The ordinary and maximum tolerance limit of sound by human being is 65 db to 75 db (decibel) 50 db to 70 db (decibel) 60 db to 80 db (decibel) 70 db to 85 db (decibel) 65 db to 75 db (decibel) 50 db to 70 db (decibel) 60 db to 80 db (decibel) 70 db to 85 db (decibel) ANSWER DOWNLOAD EXAMIANS APP
Physics The flux commonly used in brazing is Borax Ammonium chloride Zinc chloride Resin plus alcohol Borax Ammonium chloride Zinc chloride Resin plus alcohol ANSWER DOWNLOAD EXAMIANS APP