Physics Infrasonic sound has a frequency lower than 15 Hz 32 Hz 20 Hz 5 Hz 15 Hz 32 Hz 20 Hz 5 Hz ANSWER DOWNLOAD EXAMIANS APP
Physics Thermal expansion of materials arises from Strong bonds Asymmetry of potential energy curve Thermal vibrations Weak bonds Strong bonds Asymmetry of potential energy curve Thermal vibrations Weak bonds ANSWER DOWNLOAD EXAMIANS APP
Physics When an atom loses an electron it becomes Negative ion Positive ion None of these Neutron Negative ion Positive ion None of these Neutron 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 The material of which pipes are made contracts due to cold and so breaks None of these Frost makes the pipes rusty, so they break Water in the pipes freezes and on freezing water expands, so pipes break The material of which pipes are made contracts due to cold and so breaks None of these Frost makes the pipes rusty, so they break ANSWER DOWNLOAD EXAMIANS APP
Physics Light travels fastest in Glass Water Diamond Air Glass Water Diamond Air ANSWER DOWNLOAD EXAMIANS APP
Physics Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum distances between the two persons? 3.3 km, 0.30 km 1.8 km, 0.15 km 2.8 km, 0.25 km 2.2 km, 0.20 km 3.3 km, 0.30 km 1.8 km, 0.15 km 2.8 km, 0.25 km 2.2 km, 0.20 km ANSWER DOWNLOAD EXAMIANS APP