In the following statements, tick ‘T’ against those which are true, and ‘F’ against those which are false :
A.
The number of oscillations per second of a vibrating object is called its time period.gases only
solids only
liquids only
solids, liquids and gases
D.
solids, liquids and gases
Voice of which of the following is likely to have minimum frequency:
Baby girl
Baby boy
A man
A woman
A.
Baby girl