Se connecter
JAMB - Physics (2008 - No. 5)
What is the frequency of vibration if the balance wheel of a wrist watch makes 90 revolutions in 25 s?
0.01 Hz
0.04 Hz
2.27 Hz
3.60 Hz
Explication
Frequency = (No. of revolutions)/ Time = (90)/25 = 3.6 Hz
Commentaires (0)
Connectez-vous pour commenter
Publicité
Autoriser javascript à charger correctement cette page
