nomor 34 ya plisss...helpp me

jawabannya B
3/0,5 = 20
20×20 = 400

semoga membantu

f = n/t
= 3/0,15
= 3/15/100
= 3.100/15
= 300/15
= 20

λ = s/n
= 60/3/2
= 60.2/3
= 120/3
= 40

v = f.λ
=20.40
=800 (C)

Semoga membantu! Maaf kalo salah :)