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: 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. cohesion of water is greater than its adhesion with glass. mercury is a metal. ANSWER DOWNLOAD EXAMIANS APP
Physics The sound produced by a bat is– Ultrasonic Audible Subsonic Infrasonic Ultrasonic Audible Subsonic Infrasonic ANSWER DOWNLOAD EXAMIANS APP
Physics Pick out the scalar quantity Pressure Force Acceleration Velocity Pressure Force Acceleration Velocity ANSWER DOWNLOAD EXAMIANS APP
Physics What is the wavelength of visible spectrum ? 1300 A°–3000 A° 8500 A° – 9800 A° 3900 A° – 7600 A° 7800 A° – 8000 A° 1300 A°–3000 A° 8500 A° – 9800 A° 3900 A° – 7600 A° 7800 A° – 8000 A° ANSWER DOWNLOAD EXAMIANS APP
Physics What is the gravity of moon as compared to the Earth 1/8 th of Earth 1/5 th of Earth 1/4 th of Earth 1/6 th of Earth 1/8 th of Earth 1/5 th of Earth 1/4 th of Earth 1/6 th of Earth ANSWER DOWNLOAD EXAMIANS APP
Physics Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to: Hysteresis loss alone Intense sunlight at noon Both the heating effect of current and hysteresis loss The heating effect of current alone Hysteresis loss alone Intense sunlight at noon Both the heating effect of current and hysteresis loss The heating effect of current alone ANSWER DOWNLOAD EXAMIANS APP
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