Page 623 - MODUL SPEKTRUM FIZIK SPM

6.5 SPM 2011: Interference of wave
Inference / Inferens: Distance between 2 consecutive dark fringes depends on the distance between the
two slits.
Jarak antara dua punca bergetar mempengaruhi jarak antara dua garis nod berturutan
Hypothesis / Hipotesis: The shorter the distance between the two dippers, the greater the distance between
2 consecutive dark fringes
Semakin kecil jarak antara dua punca bergetar, semakin besar jarak antara dua garis
nod berturutan
Aim / Tujuan To investigate the relationship between the distance between the two dippers,a
eksperimen: and the distance between 2 consecutive bright/ dark fringes, x
Untuk mengkaji hubungan antara jarak antara dua punca bergetar, a dengan jarak
antara dua garis nod berturutan, x.
Variables/ Manipulated/dimanipulasi : the distance between the two dippers/ jarak antara dua
Pembolehubah: punca bergetar, a
Responding / bergerak balas: distance between 2 consecutive dark fringes / jarak
antara dua garis nod berturutan, x
Fixed/ Malar : frequency/ Frekuensi, f
Apparatus / Radas dan ripple tank with motor, water, meter ruler, wooden bar with two dippers, lamp,
bahan: stroboscope, battery.
Tangka riak, bekalan kuasa, dua pencelup sfera, stroboskop, pembaris meter, air, lampu,
kertas putih,
Arrangement of
apparatus / Susunan
radas:

Procedure / Prosedur : • Adjust the distance a = 2 cm.
• Use stroboscope freeze the image
• Measure the distance between 2 consecutive dark fringes, x by using metre rule
• Repeat the step using a = 4 cm, 6 cm, 8 cm and 10 cm
• Jarak antara dua punca bergetar, a ditetapkan pada jarak a = 2 cm.
• Bekalan kuasa dihidupkan.
• Corak gelombang diperhatikan menggunakan stroboskop.
• Kedudukan garis nod berturutan,x ditentukan, Ukur jarak, x.
• Ulang eksperimen dengan a =4 cm, 6 cm, 8 cm dan 10 cm.
Tabulate data/ a/cm x/cm
Penjadualan Data: 2
4
6
8
10

Analyze data/ Analisa Plot graph x against a
data: Lukis graf x lawan a.

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