Physics Propagation of sound can be visualised as propagation of ________ variations in the medium Elasticity Density Porosity Viscosity Elasticity Density Porosity Viscosity ANSWER DOWNLOAD EXAMIANS APP
Physics A boat will submerge when it displaces water equal to its own: Surface area Density Weight Volume Surface area Density Weight Volume ANSWER DOWNLOAD EXAMIANS APP
Physics What type of simple machine is an axe? Wedge The screw Both A & B Lever Wedge The screw Both A & B Lever ANSWER DOWNLOAD EXAMIANS APP
Physics It is dangerous to observe Solar eclipse with naked eyes because Ultraviolet radiations from Sun burn our retina All radiations from sun initiate chemical reactions in eyes Cosmic rays reach eyes more during the eclipse Infrared radiations from sun burn our retina Ultraviolet radiations from Sun burn our retina All radiations from sun initiate chemical reactions in eyes Cosmic rays reach eyes more during the eclipse Infrared radiations from sun burn our retina ANSWER DOWNLOAD EXAMIANS APP
Physics Which best describes how air moves during convection? Cool air is replaced by warm air Cool air falls down Warm air falls down Air always falls down Cool air is replaced by warm air Cool air falls down Warm air falls down Air always falls down ANSWER DOWNLOAD EXAMIANS APP
Physics When water freezes its density Remains constant Becomes Zero Increases Decreases Remains constant Becomes Zero Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
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