Fiisigiska Dugsiga Sare

9 Tusaalooyin Su'aalo ku saabsan Telescope-ka Xiddigiska

1. A teleskoob waxay ka kooban tahay laba muraayad qaloocanMuraayadda qaloocan ee ka fog isha indha-indheeyaha waxaa loo yaqaan muraayadda ujeeddada leh, muraayadda qaloocan ee u dhow isha indha-indheeyaha waxaa loo yaqaan muraayadda indhaha. Dhererka diiradda ee muraayadda ujeeddada leh waa 400 cm, dhererka diiradda ee muraayadda indhahana waa 20 cm. Haddii isha indha-indheeyaha ay caadi tahay oo ay leedahay hoy yar, go'aami:
a) weynaynta guud ee teleskoobka (M),
b) masaafada u dhaxaysa muraayadda ujeeddada leh iyo sawirka ay soo saarto muraayadda ujeeddada leh (s)_ob'),
c) masaafada u dhaxaysa sawirka ay soo saarto muraayadda ujeeddada leh iyo muraayadda indhaha (s)_ok)
d) masaafada u dhaxaysa labada muraayadood ee isku laaban

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8 Tusaalooyin Su'aalo ah oo ku saabsan Microscope-ka

1. Microscope-ku wuxuu ka kooban yahay laba muraayadood oo isku dheggan. Muraayadda isku dheggan ee u dhow shayga waxaa loo yaqaan muraayadda ujeeddada leh, muraayadda isku dheggan ee u dhow isha indha-indheeyaha waxaa loo yaqaan muraayadda indhaha. Dhererka diiradda ee muraayadda ujeeddada leh waa 2 cm, dhererka diiradda ee muraayadda indhahana waa 5 cm. Masaafada u dhaxaysa muraayadda ujeeddada leh iyo muraayadda indhaha waa 30 cm. Haddii isha indha-indheeyaha ay caadi tahay oo ay leedahay hoy ugu yar, go'aami: (a) weynaynta guud ee mikroskoobka, (b) masaafada shayga u jirta muraayadda ujeeddada leh.

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7 Tusaalooyin Su'aalo ah oo la adeegsanayo Muraayad Loupe ah ama Muraayad Weyneysa

1. Dhererka shayga marka si toos ah looga eego meesha ugu dhow isha caadiga ah waa 2 mm. Shayga waxaa markaa lagu arkayaa muraayad weyneysa . Haddii masaafada shayga ee horteeda muraayadda weyneysa ay tahay 10 cm, waa maxay dhererka sawirka shayga uu sameeyay muraayadda weyneysa? Barta u dhow isha caadiga ah waa 25 cm.

Dood
Waa la ogyahay in:
Dhererka shayga (h) = 2 mm
Barta u dhow isha caadiga ah (N) = 25 cm
Masaafada shayga (yada) = 10 cm
La weydiiyay: Xagasha weyneynta ee loupe (M)

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2 Tusaalooyin su'aalo ah oo ku saabsan qalabka indhaha ee kamarada

1. Kamarad analog ah oo hal muraayad ah waxay leedahay dherer diiradda saaraya oo ah 10 cm. Marka hore, kamaraddu waxay u diyaarsan tahay inay sawirto shay aan xad lahayn. Haddii qof uu rabo inuu isticmaalo kamaradda si uu u sawiro shay 5 mitir u jira, xisaabi:
(a) Masaafada u dhaxaysa filimka iyo muraayadda marka kamaradu sawirto shay aan dhammaad lahayn,
(b) Masaafada u dhaxaysa filimka iyo muraayadda marka kamaradu sawirto shay 100 mitir u jira,
(c) Beddel booska muraayadda laga bilaabo dejinta aan dhammaadka lahayn una beddel dejinta 100 mitir. Muraayadda ma laga fogeeyay filimka mise waxay u dhowdahay filimka?

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12 Tusaalooyin Su'aalo ku saabsan Qalabka Indhaha

Muraayadda Concave

1. Sawirka ay samaysay muraayad qaloocan oo ah shay dhererkiisu yahay h oo la dhigay masaafad ka yar f (f = dhererka diiradda muraayadda) waa...

A. dadban, toosan, la dhimay

B. dadban, toosan, la weyneeyay

C. dhab ah, toosan, la dhimay

D. dhab ah, rogrogay, la weyneeyay

E. dhab ah, rogrogmay, la dhimay

Dood

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Qaybaha Kamarada
 
Kamarad fudud waxay ka kooban tahay muraayad qaloocan, indhaha oo isku dheggan, shabag iyo filim.
Muraayadaha qaloocan Waxay u shaqeysaa sameynta sawirro dhab ah iyo kuwo rogan filimka. Si ka duwan isha, oo leh dherer focal ah oo isbeddela, muraayadda kamaradu waxay leedahay dherer focal ah oo go'an. Muraayadda kamaradu waa muraayad convex ah, ma aha muraayad concave ah, sababtoo ah sawirka ay soo saarto muraayad concave ah had iyo jeer waa mid casri ah. Taas bedelkeeda, sawirka ay soo saarto muraayad convex ah waa mid dhab ah marka masaafada shaygu ay ka weyn tahay dhererka focal. Sawirka dhabta ah waa sawir runtii jira, sidaas darteed sawirkan waxaa lagu duubi karaa filimka. Taas bedelkeeda, sawirka dalwaddu waa sawir been ah, sidaa darteed laguma duubi karo filimka. Booska sawirka dhabta ah iyo kan rogan ee ay soo saarto muraayad convex ah wuxuu la mid yahay booska filimka.

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Qeexitaanka teleskoobka dhulka (binokularrada)

Teleskoobka dhulka ama muraayadaha dhulka waa qalab indhaha ah oo loo isticmaalo in lagu daawado walxaha fog ee ku yaal dusha sare ee Dhulka. Teleskoobyada dhulka waxaa loo isticmaalaa in lagu daawado walxaha ku yaal dusha sare ee Dhulka, sidaa darteed sawirka ugu dambeeya ee ay soo saarto muraayadda indhaha waa inuu ahaadaa mid toosan si looga fogaado in la arko. Tani way ka duwan tahay teleskoobyada xiddigaha halkaas oo sawirka ugu dambeeya ee ay soo saarto muraayadda indhaha la rogo. Teleskoobyada xiddigaha waxaa loo isticmaalaa in lagu daawado walxaha cirka sida xiddigaha iyo meerayaasha qaab wareegsan leh si sawirrada la rogo aysan dhibaato u ahayn. Taas bedelkeeda, walxaha ku yaal dusha sare ee Dhulka ma aha kuwo wareegsan, markaa haddii teleskoobka dhulka la rogo uu soo saaro sawir la rogo, waxay adkeyn doontaa daawashada. Samaynta teleskoobka dhulka la rogo oo leh sawir kama dambays ah oo toosan dabcan way ka adag tahay sameynta teleskoobka xiddigaha la rogo oo leh sawir kama dambays ah oo la rogo.

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Cabbirka xagasha ayaa go'aamiya cabbirka sawirka shayga ku samaysmay isha. MataSida ka muuqata sawirka dhinaca, marka shaygu ka sii fogaado isha, ayaa xagasha yar ee shayga ku sameysma isha, sidaas darteedna cabbirka sawirka shayga oo yar.

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Qeexitaanka teleskoobka xiddigiska (binokularrada)

Teleskoob xiddigiska ama muraayadaha xiddigaha waa qalab indhaha ah oo loo isticmaalo in lagu caawiyo isha inay aragto walxaha cirka sida xiddigaha, meerayaasha, dayax-gacmeedyada, iwm. In kasta oo cabbirka walxaha cirka uu aad u weyn yahay, haddana masaafada u dhaxaysa walxaha cirka aad bay u fog tahay sidaa darteed marka isha lagu arko, walxaha cirka waxay u muuqdaan kuwo yar. Teleskoobyada xiddigiska waxay u shaqeeyaan inay weyneeyaan sawirka walxaha cirka si si cad loogu arki karo isha.

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Cabbirka xagasha ayaa go'aamiya cabbirka sawirka ku samaysmay retina. Sida ka muuqata sawirka kore, shayga yar, ayaa yar cabbirka xagasha sidaas darteedna sawirka ku samaysmay retina ayaa yar. Cabbirka sawirka yar ee retina ayaa ah sababta ay isha ugu adag tahay inay si cad u aragto walxaha yaryar, xitaa marka laga eego meel caadi ah ama meel fog oo 25 cm ah.

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