Physics Which phenomenon is responsible for the echo of sound wave? Reflection Interference Refraction Polarisation Reflection Interference Refraction Polarisation ANSWER DOWNLOAD EXAMIANS APP
Physics The device used for locating submerged objects under sea is. Laser Maser Radar Sonar Laser Maser Radar Sonar ANSWER DOWNLOAD EXAMIANS APP
Physics In MRI machine, which one of the following is used? Ultra-sound wave Magnetic wave X-ray Sound wave Ultra-sound wave Magnetic wave X-ray Sound wave ANSWER DOWNLOAD EXAMIANS APP
Physics The law of conservation of energy states that Energy can either be created or destroyed Energy can either be created nor destroyed Energy can neither be created nor destroyed Energy can neither be created or destroyed Energy can either be created or destroyed Energy can either be created nor destroyed Energy can neither be created nor destroyed Energy can neither be created or destroyed ANSWER DOWNLOAD EXAMIANS APP
Physics Optic fibres are used in : CAT scans Endoscopy X-ray photos Ultrasound scans CAT scans Endoscopy X-ray photos Ultrasound scans ANSWER DOWNLOAD EXAMIANS APP
Physics When hot liquid is poured into a thick glass tumbler, it cracks because glass : Has a very low specific heat Has low temperature coefficient of expansion Is a bad conductor of heat so only inner surface expands Has high temperature coefficient of expansion Has a very low specific heat Has low temperature coefficient of expansion Is a bad conductor of heat so only inner surface expands Has high temperature coefficient of expansion ANSWER DOWNLOAD EXAMIANS APP