Raƙuman inji guda 3 (Lokacin Mita na Tsawon Lokaci Gudun raƙuman) - Matsaloli da Magani
1. Kwalaye biyu suna kan ƙofofin raƙuman ruwa . Dukansu suna motsawa sama da ƙasa a saman teku sau 20 cikin daƙiƙa 4. Idan nisan kwalaye biyu ya kai santimita 100 kuma a tsakaninsu, akwai kwalaye biyu da kuma kwalaye ɗaya, a ƙayyade mitar raƙuman ruwa da saurin raƙuman ruwa.
An sani:
Dukansu murhu suna saman raƙuman ruwa kuma tsakanin murhu biyu, akwai magudanar ruwa guda biyu da kuma ƙwallo ɗaya (duba hoto). Don haka, akwai raƙuman ruwa guda biyu tsakanin murhu biyu.
Tsawon Raƙuman Ruwa (λ) = 100 cm / 2 = 50 cm.
Mita (f) = 20/4 = 5 Hertz
Ana so: Yawan raƙuman ruwa da saurin raƙuman ruwa
Magani:
Mitar raƙuman ruwa (f) = 5 Hertz
Gudun raƙuman ruwa (v) = f λ = (5)(50 cm) = 250 cm/s
2. Ana girgiza maɓuɓɓugar ruwa (slinky) don samar da raƙuman ruwa masu tsayi, inda nisan da ke tsakanin matsi biyu mafi kusa shine 40 cm. Idan saurin raƙuman ruwa shine 20 ms -1 , ƙayyade tsawon raƙuman ruwa da mitar raƙuman ruwa.
An sani:
Nisa tsakanin matsi biyu mafi kusa = nisan da ke tsakanin faɗaɗawa biyu mafi kusa = nisan da ke tsakanin ramuka biyu mafi kusa = nisan da ke tsakanin raƙuman ruwa guda 1
Tsawon Raƙuman Ruwa (λ) = 40 cm = 0.4 m
Tsawon tsayin (v) = 20 m/s
Ana so: Tsawon Raƙuman Ruwa (λ) da mitar raƙuman ruwa (f)
Magani:
Tsawon Raƙuman Ruwa (λ) = 0.4 m
Mita (f) = v / λ = 20 / 0.4 = 50 Hertz
3. A saman teku, akwai murhu biyu da aka raba daga juna har zuwa santimita 60. Dukansu murhu suna motsawa sama da ƙasa sau 20 cikin daƙiƙa 10. Idan ɗaya yana kan maƙallin, ɗayan yana kan maƙallin maƙallin. Tsakanin murhu biyu, akwai maƙallin maƙallin. A ƙayyade lokacin raƙuman ruwa da saurin raƙuman ruwa.
An sani:
Tsawon Raƙuman Ruwa (λ) = 60 cm / 1.5 = 40 cm
Mita (f) = 20/10 = 2 Hertz
Ana so: Lokaci da saurin raƙuman ruwa.
Magani:
Lokaci (T) = 1/f = 1/2 = daƙiƙa 0.5
Gudun raƙuman ruwa (v) = f λ = (2)(40) = 80 cm/s
