Kafin ka samo dabarar gilashin da ke da siffar lanƙwasa, da farko ka fahimci wasu ƙa'idodi na alamun. ruwan tabarau mai lanƙwasa.
Dokar Alamar Ruwan Lens Mai Lanƙwasa
- Nisa (s) na abu
Idan abin yana gefen ruwan tabarau ɗaya da alkiblar da hasken ke fitowa to, to Nisa tsakanin abu da abu an yi masa alama mai kyau.
- Nisa tsakanin hotuna (s)
Idan haske ya ratsa ta cikin inuwar to Nisa tsakanin inuwa da inuwa an yi masa alama mai kyau (hoto na gaske). Idan hoton bai wuce ta hanyar hasken haske ba to Nisa tsakanin inuwa da inuwa Alamar korau (hoton kama-da-wane).
- Tsawon maƙasudi (f)
Idan aka wuce wurin da ruwan tabarau ke haskakawa ta cikin hasken rana, to, tsawon mai da hankali Ruwan tabarau yana da alamar tabbatacce. Akasin haka, idan hasken bai wuce wurin da ruwan tabarau ke haskakawa ba, to, to tsawon mai da hankali Ruwan tabarau an yi masa alama ta konewa. Haske ba ya ratsawa ta wurin hasken da ke kewaye da ruwan tabarau saboda wannan tsawon mai da hankali Gilashin tabarau masu lanƙwasa ba su da kyau.
- Tsawon abu (h)
Idan abin yana sama da axis na ruwan tabarau mai lanƙwasa to tsayin abin Alamar tabbatacce (abu a tsaye). Akasin haka, idan abin yana ƙasa da ma'aunin ruwan tabarau mai lanƙwasa to tsayin abin Alamar korau (abin da aka juya).
- Tsawon inuwar (h')
Idan hoton yana sama da axis na ruwan tabarau mai lanƙwasa to tsayin inuwar alama mai kyau (hoto a tsaye). Idan hoton yana ƙasa da madaurin ruwan tabarau mai lanƙwasa to tsayin inuwar Alamar korau (hoton da aka juya).
- Girman hoto (m)
Idan girman hoton ya fi girma fiye da girman abu. Idan girman hoton ya fi girma = 1 to girman hoton yayi daidai da girman abu. Idan girman hoton ya fi girma < 1 to girman hoton ya fi girma fiye da girman abu.
Tsarin Ruwan Rana Mai Lanƙwasa
Duba hoton da ke ƙasa. Akwai haske guda biyu da aka nuna suna tafiya zuwa ga ruwan tabarau mai siffar ƙwallo, sannan hasken ya juya ta hanyar ruwan tabarau mai siffar ƙwallo.
Taken rubutu:
s = nisan abu, s' = nisan hoto, h = P P' = tsayin abu, h' = Q Q' = tsayin hoto, F1 da kuma F2 = wurin da ruwan tabarau mai siffar ƙwallo ke haskakawa.
A cikin hasken P'AS, alwatika P'AP yayi kama da alwatika Q'AQ. Saboda haka:
A cikin hasken P'BR, alwatika BF2A yayi kama da alwatika Q'F2Q inda nisan AB = tsayin abu (h) da nisan F2A = tsawon mai da hankali (f) na ruwan tabarau mai lanƙwasa. Saboda haka:
Gefen hagu da dama na lissafi 1 da 2 daidai suke, saboda haka gefunan dama suna daidaitacce:
A ninka ɓangarorin biyu na lissafin da s':
Dangane da ƙa'idodin alamar ruwan tabarau mai lanƙwasa, ana iya canza wannan dabarar zuwa kamar haka: Tsarin madubi mai lankwasa, Idan Nisa ta hoto (s) an ba shi alama mara kyau saboda inuwar ba ta wucewa ta cikin hasken ba kuma hasken ba ya ratsa ta. Tsawon mai da hankali (f) ana kuma ba shi alama mara kyau saboda hasken ba ya ratsawa ta wurin hasken (idan aka kwatanta da hoton samuwar hoton da ke sama). Dangane da wannan bayanin, dabarar gilashin mai siffar da ke sama tana canzawa zuwa:
Bayani: s = nisan abu, s' = nisan hoto, f = tsawon mai da hankali.
Kullum ku tuna da ƙa'idar alamar ruwan tabarau mai siffar concave lokacin amfani da wannan dabarar don magance matsalolin ruwan tabarau mai siffar concave.
Girman Hoto (m)
Ka lura da hoton samuwar inuwar abin a sama. Alwatika P'AP da Q'AQ iri ɗaya ne, don haka za mu iya gano alaƙar da ke tsakanin nisan abu da nisan inuwa tare da tsayin abu da tsayin inuwa:
An sake rubuta wannan dabara kamar haka a ƙasa ta hanyar ƙara m:
Bayani:
m = girman hoton
h = tsayin abu (mai kyau idan yana sama da axis na ruwan tabarau mai lanƙwasa ko abu mai tsaye)
h' = tsayin hoton (tabbatacce idan yana sama da ma'aunin ruwan tabarau mai lanƙwasa ko kuma hoton yana tsaye)
s = nisan abu (tabbatacce idan an wuce abin hasken da ke shigowa)
s' = nisan hoto (tabbatacce idan an wuce hoton hasken wuta ko ainihin hoto)
Tambayoyi Misali na Ruwan Rana Mai Lanƙwasa
Pelajari misali na gilashin ƙofa mai siffar ƙofa domin ku fahimci yadda ake amfani da dabarar ruwan tabarau mai siffar concave.
Tambayoyin Aikin Ruwan Concave
Yi shi Tambayoyin aikin gilashin concave domin ku zama ƙwararru wajen magance matsalolin ruwan tabarau masu lanƙwasa.
