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MODUL • Fizik TINGKATAN 5

1. Dengan menggunakan pembaris meter, jarak antara dua pencelup diukur, a = 2.0 cm.
By using a metre rule, the distance between two dippers is measured, a = 2.0 cm.
2. Bekalan kuasa dihidupkan untuk menghasilkan dua gelombang membulat dari pencelup. Gelombang dibekukan
dengan menggunakan stroboskop mekanikal. Gelombang dilakarkan pada skrin.
The power supply is switched on to produce two circular waves from the dippers. The waves are frozen by a
mechanical stroboscope. The waves are sketched on the screen.
Prosedur
Procedure 3. Dengan menggunakan pembaris meter, jarak antara dua garis nod yang berturutan, x, diukur
dan direkodkan
By using a metre rule, the distance between two consecutive nodal lines, x, is measured and recorded.
4. Eksperimen diulangi pada jarak yang berbeza antara dua pencelup, a = 4.0 cm, 6.0 cm, 8.0 cm
dan 10.0 cm. / The experiment is repeated with different values of the distance between two dippers,
a = 4.0 cm, 6.0 cm, 8.0 cm and 10.0 cm. UNIT 1

Menjadualkan a / cm 2.0 4.0 6.0 8.0 10.0
data
Tabulation of data x / cm

Jarak antara dua garis nod berturutan
Distance between two consecutive nodal lines
x / cm

Menganalisis data
Analysis of the data
Jarak antara dua pencelup
Distance between the two dippers
0 a / cm

Latihan / Exercise

1 Dalam satu eksperimen untuk mengkaji corak interferens gelombang air, jarak antara dua pencelup sfera ialah 2.5 cm dan jarak
antara dua garis antinod berturutan pada titik pengukuran ialah 5.0 cm. Berapakah panjang gelombang bagi air jika jarak dari
dua pencelup ke titik pengukuran itu ialah 10.0 cm?
In an experiment to investigate the interference pattern of water waves, the distance between two spherical dippers is 2.5 cm and the
distance between two consecutive antinodal lines is 5.0 cm. What is the wavelength of the water waves if the distance from the two
dippers to the point of measurement is 10.0 cm?
Penyelesaian
Solution

Diberi / Given a = 2.5 cm, x = 5.0 cm, D = 10.0 cm
ax
λ =
D
2.5 cm × 5.0 cm
= Video
10.0 cm
= 1.25 cm

Interferens Gelombang
Interference of Waves
https://goo.gl/7dS7Pf

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