Physics A convex mirror of focal length f (in air) is immersed in a liquid (u=4/3). The focal length of the mirror in the liquid will be : F (4/3)f (7/3)f (3/4)f F (4/3)f (7/3)f (3/4)f ANSWER DOWNLOAD EXAMIANS APP
Physics For an ideal gas, which one of the following statements does not hold true? The kinetic energies of all gas molecules are not same The speed of all gas molecules is same The potential energy of the gas molecules is zero There is no interactive force between the molecules. The kinetic energies of all gas molecules are not same The speed of all gas molecules is same The potential energy of the gas molecules is zero There is no interactive force between the molecules. ANSWER DOWNLOAD EXAMIANS APP
Physics Solids have definite shapes.This is because The forces of adhesion are less The forces of cohesion are very large The forces of adhesion are large The forces of cohesion of the molecules within are very much less in them The forces of adhesion are less The forces of cohesion are very large The forces of adhesion are large The forces of cohesion of the molecules within are very much less in them ANSWER DOWNLOAD EXAMIANS APP
Physics Flywheel is an important part of a steam engine because it : Decreases the moment of inertia Helps the engine in keeping the speed uniform Gives strength to the engine Accelerates the speed of the engine Decreases the moment of inertia Helps the engine in keeping the speed uniform Gives strength to the engine Accelerates the speed of the engine ANSWER DOWNLOAD EXAMIANS APP
Physics Sound waves in air are electromagnetic polarised transverse longitudinal electromagnetic polarised transverse longitudinal ANSWER DOWNLOAD EXAMIANS APP
Physics A periscope works by the principle of Total internal reflection Reflection Diffraction Refraction Total internal reflection Reflection Diffraction Refraction ANSWER DOWNLOAD EXAMIANS APP
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