Amatheleskopu ezinsimbi ezibonakalayo - izinkinga nezixazululo

1. Ubude obuqondile belensi eqondiwe bungama-400 cm kanti ubude obuqondile belensi yeso bungama-20 cm. Uma iso likhululekile , thola:

a) Ukwandiswa okuphelele kwetheleskopu (M)

b) ibanga lesithombe ukusuka kulensi eqondiwe ( d _ob '),

c) ibanga lesithombe ukusuka kulensi _yeso ( doc ₎

d) ibanga phakathi kwamalensi

Kwaziwa:

Ubude obuqondile belensi eqondiwe (f _ob ) = 400 cm

Ubude obuqondile belensi yeso ( _foc ) ₌ 20 cm

Iso likhululekile ukuze isithombe sangempela esikhiqizwe ilensi eqondiwe sibe seqophelweni eliqondile lelensi eqondiwe kanye neqophelo lokuqala lelensi yeso.

Isixazululo:

a) Ukukhulisa okuphelele (M)

M = f _ob / _{fo c}

M = 400 cm / 20 cm = 20 X

Isithombe sibonakala ngeso lengqondo futhi siguquliwe.

b) Ibanga lesithombe ukusuka kulensi eqondile ( d _ob ')

Uma iso likhululekile, ibanga lesithombe ukusuka kulensi eqondile ( d _ob ') = ubude obuqondile belensi eqondile ( f _ob ) = 400 cm = 4 m.

c) _Ibanga lesithombe sangempela kusuka ku-lens _yeso ( doc )

Uma iso likhululekile, ibanga lesithombe sangempela kanye nelensi yeso (s _{o c} ) = ubude obuqondile belensi yeso (f _oc ) = 20 cm = 0.2 m.

d) Ibanga eliphakathi kwamalensi

Ibanga eliphakathi kwamalensi = ubude betheleskopu (l) = ubude obuqondile belensi eqondiwe (f _ob ) + ubude obuqondile belensi yeso (f _oc ) = 400 cm + 20 cm = 420 cm.

2. Ibanga eliphakathi kwelensi eqondile nelensi yeso lingama-20 cm . Ukukhulisa okuphelele kwetheleskopu lapho iso likhululekile kungama-40X. Bala ubude belensi eqondile yeso (fo _{c )} kanye nobude belensi eqondile (f _ob )

Kwaziwa:

ubude betheleskopu (l) = 20 cm

ukukhuliswa okuphelele kwetheleskopu (M) = 40

Isixazululo:

Uma iso likhululekile, ubude obuqondile belensi yeso (f _oc ) + ubude obuqondile belensi eqondiwe (f _ob ) = ubude beteleskopu (l)

fo _{o c} + f _ob = l

f _ob = l – _{fo c}

f _ob = 20 – fo _{c —–} > isibalo 1

Ukwandiswa okuphelele kwethelesikopu (M):

M = f _ob / _{fo c}

f _ob = M _{fo c}

f _ob = 40 fo _{c —–} > isibalo 2

Ubude obuqondile belensi yeso :

Faka u- f _ob esilinganisweni 1 no- f _ob esilinganisweni 2:

f _ob = 20 – _{fo c}

40 fo _{c =} 20 – _{fo c}

40 fo _{c +} fo _{c =} 20

41 fo _{c =} 20

fo _{c =} 20 cm / 41

fo _{c =} 0.5 cm

Ubude obuqondile belensi yeso = 0.5 cm.

Ubude obuqondile belensi eqondiwe :

f _ob = 20 – f _oc

f _ob = 20 – 0.5

f _ob = 19.5 cm

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