Physics Why the needle of iron swims on water surface when it is kept gently ? Due to its shape It will remain under the water, when it will displace more water than its weight Due to surface tension The density of needle is less than that of water Due to its shape It will remain under the water, when it will displace more water than its weight Due to surface tension The density of needle is less than that of water ANSWER DOWNLOAD EXAMIANS APP
Physics Oil rises up the wick in a lamp because Of the surface tension phenomenon Of the capillary action phenomenon Oil is very light Of the diffusion of oil through the wick Of the surface tension phenomenon Of the capillary action phenomenon Oil is very light Of the diffusion of oil through the wick ANSWER DOWNLOAD EXAMIANS APP
Physics Light travels at the fastest speed in: hydrogen water vacuum glass hydrogen water vacuum glass ANSWER DOWNLOAD EXAMIANS APP
Physics The spring constant of a spring depends on its Length and its diameter Material only Length only Thickness, its diameter and its material Length and its diameter Material only Length only Thickness, its diameter and its material ANSWER DOWNLOAD EXAMIANS APP
Physics The SI unit for measuring work and energy is Watt Joule Farad Ohm Watt Joule Farad Ohm ANSWER DOWNLOAD EXAMIANS APP
Physics Why does bleeding occur through the nose in high mountainous regions ? The pressure at high altitudes is greater than that on the plains The blood pressure of a person increases at high altitudes The pressure of blood in capillaries is greater than the outside pressure The blood pressure fluctuates and finally decreases drastically The pressure at high altitudes is greater than that on the plains The blood pressure of a person increases at high altitudes The pressure of blood in capillaries is greater than the outside pressure The blood pressure fluctuates and finally decreases drastically ANSWER DOWNLOAD EXAMIANS APP
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