In which medium the speed of sound is more :
humid air or dry air? Give a reason for your answer.
The speed of sound is more in the humid air because, in presence of moisture, the density of air decreases and sound travels with greater speed.
Will a body move more in air or vaccum when weighed by a spring balance ? Give reasons for your answers
Will a body weigh more in air or in vacuum when weighed with a spring balance ? Give a reason for your answer.