Physics Why does ice covered in sawdust not melt quickly ? Sawdust does not allow the air to touch the ice The water is absorbed by sawdust Sawdust is good conductor of heat Sawdust is a bad conductor of heat Sawdust does not allow the air to touch the ice The water is absorbed by sawdust Sawdust is good conductor of heat Sawdust is a bad conductor of heat ANSWER DOWNLOAD EXAMIANS APP
Physics The potential difference between the terminals of an electric heater is 60 V when it draws a current of 4 A from the source. What current will the heater draw if the potential difference is increased to 127.5 V ? 24 A 0.41666666666667 8.5 A 24 A 0.41666666666667 8.5 A ANSWER DOWNLOAD EXAMIANS APP
Physics Electric Motor converts ________ energy to mechanical energy Sound Electrical Chemical Mechanical Sound Electrical Chemical Mechanical ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following experiments analyzed the Fraunhofer lines of the solar spectrum? Barkla's experiment on scattering of X-rays Geiger and Marsdens experiment on scattering of alpha particles Lamb-Rutherford experiment Bunsen and Kirchhoff's experiment Barkla's experiment on scattering of X-rays Geiger and Marsdens experiment on scattering of alpha particles Lamb-Rutherford experiment Bunsen and Kirchhoff's experiment ANSWER DOWNLOAD EXAMIANS APP
Physics Why is it difficult to breathe at higher altitudes? Due to low temperature Due to low air pressure Due to ozone Due to high humidity Due to low temperature Due to low air pressure Due to ozone Due to high humidity ANSWER DOWNLOAD EXAMIANS APP
Physics A parachute descends slowly whereas a stone dropped from the same height falls rapidly, because Special mechanisms are present in parachute Stone is heavier than parachute A parachute has a larger surface area and air resistance is more None of these Special mechanisms are present in parachute Stone is heavier than parachute A parachute has a larger surface area and air resistance is more None of these ANSWER DOWNLOAD EXAMIANS APP
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