Question

Tolong bantuannya saya nggak bisa

Answer 1

7. Diketahui:
λ = 5000 A = 5.10⁻⁷ m
d = 2 mm = 2.10⁻³ m
L = 1 m
y =..?
k = 3

dy/L = kλ
2.10⁻³.y/1=3.5.10⁻⁷
2.10⁻³ y = 15.10⁻⁷
y= 15.10⁻⁷/2.10⁻³ = 7,5.10⁻⁴ m = 0,75 mm