Мавзу: G‘altakning induktivligini, to‘la kuchlanish va tok orasidagi faza siljishini hamda muhitning magnit singdiruvchanligini aniqlash

4-rasm

(3) ifodani (2) formulaga qo’ysak: (4)

Ishni bajarish tartibi:

• 
  Yorug`lik manbaini difraksion panjaradan 1,5-2 m uzoqlikda o`rnatib, tok manbaiga ulang. Bunda nurlar dastasini tirqish orqali o`tib, difraksion panjaraga tushishini ta’minlang.
  
• 
  To`lqin uzunligini aniqlash uchun mo`ljallangan qurilmaning old qismiga difraksion panjarani o`rnatib, lampa, tirqish va difraksion panjara lampa bilan bir xil balandlikda bo`lishini ta’minlang.
  
• 
  Spektr tasviri shkala shitida hosil bo`lgancha shitni brusok ustida harakatlantiring.
  
• 
  Shitdagi shkaladan 1 va 2-tartibdagi qizil va binafsha nurlarning chegaralarini aniqlab ular orasidagi masofa "a" ni ulchang. (a masofani birinchi tartibli qizil yoki binafsha, xuddi shunday ikkinchi tartibli va hokazo tartibli spektrlar uchun ham olish mumkin).
  
• 
  Brusok bo`ylab difraksion panjaradan shkalagacha bo`lgan masofa "b" ni yozib oling.
  
• 
  "a" va "b" qiymatlarini (3) formulaga quyib  ni aniqlang.
  
• 
  Topilgan qiymatlarni jadval ko`rinishida rasmiylashtiring.
  

2-jadval

№	d (м)	k	b (м)	(м)	(м)	(м)	 (Å)	 (Å)
1
2
3
4
5
O’rt. q

Nazоrat savоllari

1. 
   Difraksiya hodisasini tushuntiring va u qanday sharoitda kuzatiladi. Gyugens prinsipi nima?
   
2. 
   Qaysi nur difraksiya spektrda eng katta og`ish burchagiga ega bo`ladi?
   
3. 
   Difraksion panjara deb nimaga aytiladi?
   
4. 
   Difraksion panjaraning maksimum va minimumlik shartlarini yozing.
   
5. 
   Ishni bajarish tartibini tushuntiring?
   
6. 
   Frenel difraksiyasi Fraungofer difraksiyasidan nima bilan farq qiladi?
   

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