Physics Lakes freeze in cold countries in winter, leaving the water underneath at 4°C 4°F 0°F 0°C 4°C 4°F 0°F 0°C ANSWER DOWNLOAD EXAMIANS APP
Physics Why is it difficult to breathe at higher altitudes? Due to high humidity Due to low air pressure Due to low temperature Due to ozone Due to high humidity Due to low air pressure Due to low temperature Due to ozone ANSWER DOWNLOAD EXAMIANS APP
Physics Gas thermometers are more sensitive than the liquid thermometers because the gases Have large coefficient of expansion Have low specific heat Are lighter Have high,specific heat Have large coefficient of expansion Have low specific heat Are lighter Have high,specific heat ANSWER DOWNLOAD EXAMIANS APP
Physics While ascending a hill, the driver of the vehicle keeps the gear ratio Greater than 1 Equal to 1 Less than 1 Either equal to or greater than 1 Greater than 1 Equal to 1 Less than 1 Either equal to or greater than 1 ANSWER DOWNLOAD EXAMIANS APP
Physics An optically plane surface reflects a beam of light As parallel beams in all directions As diffused beams in all directions As a parallel beam in one direction As a diffused beam in one direction As parallel beams in all directions As diffused beams in all directions As a parallel beam in one direction As a diffused beam in one direction ANSWER DOWNLOAD EXAMIANS APP
Physics On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because: cohesion of mercury is greater than its adhesion with glass. mercury is a metal. cohesion of water is greater than its adhesion with glass. density of mercury is greater than that of water. cohesion of mercury is greater than its adhesion with glass. mercury is a metal. cohesion of water is greater than its adhesion with glass. density of mercury is greater than that of water. ANSWER DOWNLOAD EXAMIANS APP
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