3. y = 0,2.sin 0,4π(60.t - x)
y = A.sin (ω.t - k.x)
a. Amplitudo
A = 0,2 cm
b. Frekuensi
ω = 0,4π. 60
2π. f = 24.π
f = 24/2 = 12 Hz
c. panjang gelombang
k = 0,4π
2π/λ = 0,4π
λ = 2/0,4 = 5 cm
d. cepat rambat
v = λ. f = 5. 12 = 60 cm/s
4. y = 0,02.sin (20π.t- 0,2πx)
A = 0,02 cm
b. Panjang gelombang
k = 0,2π
2π/λ = 0,2π
λ = 2/0,2 = 10 cm
c. cepat rambat
v = λ. f .... lihat jawaban e.
v = 10. 10 = 100 cm/s
d. bilangan gelombang
k = 0,2π cm⁻¹
e. frekuensi
ω = 20π
2π.f = 20π
f = 10 Hz
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3. y = 0,2.sin 0,4π(60.t - x)
y = A.sin (ω.t - k.x)
a. Amplitudo
A = 0,2 cm
b. Frekuensi
ω = 0,4π. 60
2π. f = 24.π
f = 24/2 = 12 Hz
c. panjang gelombang
k = 0,4π
2π/λ = 0,4π
λ = 2/0,4 = 5 cm
d. cepat rambat
v = λ. f = 5. 12 = 60 cm/s
4. y = 0,02.sin (20π.t- 0,2πx)
y = A.sin (ω.t - k.x)
a. Amplitudo
A = 0,02 cm
b. Panjang gelombang
k = 0,2π
2π/λ = 0,2π
λ = 2/0,2 = 10 cm
c. cepat rambat
v = λ. f .... lihat jawaban e.
v = 10. 10 = 100 cm/s
d. bilangan gelombang
k = 0,2π cm⁻¹
e. frekuensi
ω = 20π
2π.f = 20π
f = 10 Hz