Physics Which of the following are methods of heat transfer? Revolution Evaporation Convection Thermal Expansion Revolution Evaporation Convection Thermal Expansion ANSWER DOWNLOAD EXAMIANS APP
Physics In MRI machine, which one of the following is used? Sound wave Ultra-sound wave Magnetic wave X-ray Sound wave Ultra-sound wave Magnetic wave X-ray ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetism at the centre of a bar magnet is maximum zero minimum minimum or maximum maximum zero minimum minimum or maximum ANSWER DOWNLOAD EXAMIANS APP
Physics Why two thin shirts can keep us warmer than a single thick shirt in winter ? Air layer between two shirts works as good conductor Two thin shirts become thicker so prevent transmission of heat No radiation of heat takes place Air layer between two shirts behaves like insulating media Air layer between two shirts works as good conductor Two thin shirts become thicker so prevent transmission of heat No radiation of heat takes place Air layer between two shirts behaves like insulating media ANSWER DOWNLOAD EXAMIANS APP
Physics Bats can sense obstacles because they produce Supersonic sound waves Infrasonic sound waves Ultrasonic sound waves Micro sound waves Supersonic sound waves Infrasonic sound waves Ultrasonic sound waves Micro sound waves ANSWER DOWNLOAD EXAMIANS APP
Physics A periscope works by the principle of Total internal reflection Diffraction Reflection Refraction Total internal reflection Diffraction Reflection Refraction ANSWER DOWNLOAD EXAMIANS APP
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