Physics The focal length of a concave mirror with a radius of curvature of 20.0 cm is : 5 cm 15 cm 10 cm 20 cm 5 cm 15 cm 10 cm 20 cm ANSWER DOWNLOAD EXAMIANS APP
Physics A body absorbs heat most if it is Black and rough White and rough White and smooth Black and smooth Black and rough White and rough White and smooth Black and smooth ANSWER DOWNLOAD EXAMIANS APP
Physics What changes will happen to a bowl of ice and water kept at exactly zero degree Celsius ? All water will become ice No change will happen Only some ice will melt All ice will melt All water will become ice No change will happen Only some ice will melt All ice will melt ANSWER DOWNLOAD EXAMIANS APP
Physics Velocitation is the tendency to Be traveling at a speed that is slower than perceived None of these Both A & B Be traveling at a speed that is faster than perceived Be traveling at a speed that is slower than perceived None of these Both A & B Be traveling at a speed that is faster than perceived ANSWER DOWNLOAD EXAMIANS APP
Physics Water pipes in hilly areas often burst on a cold frosty night, because Water in the pipes freezes and on freezing water expands, so pipes break None of these Frost makes the pipes rusty, so they break The material of which pipes are made contracts due to cold and so breaks Water in the pipes freezes and on freezing water expands, so pipes break None of these Frost makes the pipes rusty, so they break The material of which pipes are made contracts due to cold and so breaks ANSWER DOWNLOAD EXAMIANS APP
Physics Energy in reflected light : Becomes maximum for angle of incidence equal to 45° Increases with the increase in angle Decreases with the increase in angle of incidence Does not depends on the angle of incidence Becomes maximum for angle of incidence equal to 45° Increases with the increase in angle Decreases with the increase in angle of incidence Does not depends on the angle of incidence ANSWER DOWNLOAD EXAMIANS APP
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