tolong jawab. no 44 please

diketahui
s = 24m
v = 4m/s
n = 1,5 kali
ditanya
a) lamda
b) T
jawab
a) lamda = s/n
lamda = 24/1,5
lamda = 16 m
b) T = lamda / v
T = 16/4 = 4