Physics Lakes freeze in cold countries in winter, leaving the water underneath at 0°C 4°C 0°F 4°F 0°C 4°C 0°F 4°F ANSWER DOWNLOAD EXAMIANS APP
Physics What is the unit of relative density? Kg/m2 It has no unit Kg/m Kg/m3 Kg/m2 It has no unit Kg/m Kg/m3 ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following criterion is used for any metal to be used as a cooking material ? Less electrical conductivity More specific heat More thermal conductivity Less thermal conductivity Less electrical conductivity More specific heat More thermal conductivity Less thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Physics A person lifts luggage of 20 kg from the ground and puts it on his head 2m above the ground. Calculate the work done by him. (g = 10 ) 400J 20 J 40J 200J 400J 20 J 40J 200J ANSWER DOWNLOAD EXAMIANS APP
Physics Calculate the time period (in seconds) of a sound wave of wavelength 4m traveling with a speed of 500m/s 0.016 2000 1000 0.008 0.016 2000 1000 0.008 ANSWER DOWNLOAD EXAMIANS APP
Physics An Electric generator is based on which of the following scientific principles? Laws of Thermodynamics Faraday's law of Electromagnetic Induction Super Conductivity Newton's Law of Motion Laws of Thermodynamics Faraday's law of Electromagnetic Induction Super Conductivity Newton's Law of Motion ANSWER DOWNLOAD EXAMIANS APP