akshitasingh2091 Asked: December 2022 A8 In the adjoining figure, AB and CD are two parallel chords and O isthe centre. If the radius of the circle is 15 cm,
akshitasingh2091 Asked: December 2022 a source of wave produces 4 crests and 3 troughs in 0.1 sec. what is the frequency of wave ? also find the