Physics A body of mass 2 kg is thrown upward with initial velocity of 20 m/s. After 2 seconds, its kinetic energy will be : (g = 10 m/s2) 200 J 0 J 400 J 100 J 200 J 0 J 400 J 100 J ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following principle is used to produce ''low-temperatures' ? Thermo-electric effect Joule-Kelvin effect Super conductivity Adiabatic demagnetisation Thermo-electric effect Joule-Kelvin effect Super conductivity Adiabatic demagnetisation ANSWER DOWNLOAD EXAMIANS APP
Physics When a ring of metal is heated what happens to its hole ? It expands or contracts according to its coefficient of expansion Contracts Expands It expands or contracts according to its diameter It expands or contracts according to its coefficient of expansion Contracts Expands It expands or contracts according to its diameter ANSWER DOWNLOAD EXAMIANS APP
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 : (7/3)f (3/4)f (4/3)f F (7/3)f (3/4)f (4/3)f F ANSWER DOWNLOAD EXAMIANS APP
Physics Speed of sound is maximum in which among the following? Solids Gases Vaccum Liquids Solids Gases Vaccum Liquids ANSWER DOWNLOAD EXAMIANS APP
Physics An egg sinks in soft water but floats in a concentrated solution of salt because Egg absorbs salt from the solution and expands The density of salt solution exceeds the density of eggs Water has high surface tension Albumin dissolves in salt solution and egg becomes lighter Egg absorbs salt from the solution and expands The density of salt solution exceeds the density of eggs Water has high surface tension Albumin dissolves in salt solution and egg becomes lighter ANSWER DOWNLOAD EXAMIANS APP
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