1. Kureba kwelenzi yekutarisa i2 cm uye kureba kwelenzi yekuona i5 cm. Kureba kuri pakati pelenzi yekutarisa nelenzi yekuona i30 cm. Sarudza kukura kwese uye daro rechinhu kubva kune lenzi yekutarisa kana ziso rakasununguka.
Zvinozivikanwa:
Kureba kwe lenzi yekutarisa (f ob ) = 2 cm
Kureba kwelenzi yemaziso (f oc ) = 5 cm
Kureba pakati pemagirazi (l) = 30 cm
Nzvimbo iri pedyo (N) = 25 cm
Solution:
(a) kuwedzera kwese
Fomura yekukudza kwese:
M = m ob M oc
M = kukura kwese, m ob = kukura kwe lenzi yekutarisa, M oc = kukura kwe angular yemaziso
Kukura kwe lenzi yekutarisa kana ziso rakasununguka (m ob ):
Kureba kwemufananidzo kubva kune lenzi yekutarisa (d ob '):
d ob ' = l – f oc = 30 cm – 5 cm = 25 cm
Kureba kwechinhu kubva kune lenzi yechinangwa (d ob ):
Lenzi ine chinangwa igirazi rinobatana saka urefu hwefocal hune chiratidzo chekuti plus.
Kureba kwemufananidzo kune chiratidzo chekuti mufananidzo wacho ndewechokwadi kana kuti mwaranzi inopfuura nemumufananidzo.
Kukura kwe lenzi yechinangwa :
Kukura kwemaziso kana ziso rakasununguka (M ok ):
M oc = N / f oc = 25 cm / 5 cm = 5X
Kukura kwese:
M = m ob M oc = (12.5)(5) = 62.5X
(b) Chinhambwe chechinhu kubva kune lenzi chaiyo (d ob )
Kureba kwechinhu kubva kune lenzi i2 cm.
2. Maikorosikopu ine chinhu che5X objective ne 20X ocular. Daro riri pakati pemalenzi i15 cm. (a) Sarudza kukura kwese kana ziso rakasununguka (b) sarudza urefu hwe focal lens ye ocular (c) urefu hwe focal lens ye objective
Zvinozivikanwa:
Kukura kwe lenzi ine chinangwa (m ob ) = 5X
Kukura kwelenzi yemaziso ( Moc ) = 20X
Nzvimbo iri pedyo (N) = 25 cm
Kureba pakati pemagirazi (l) = 15 cm
Solution:
(a) Kukura kwese (M)
M = m ob M oc
M = (5)(20) = 100X
(b) Kureba kwelenzi yemaziso (f oc )
Fomura yekuwedzera kwelenzi yemaziso (M oc ) kana ziso rakasununguka:
M oc = N / fo oc
Kureba kwelenzi yemaziso:
f oc = N / M oc = 25 cm / 20 = 1.25 cm
(c) kureba kwelenzi yekutarisa (f ob )
Nzira yekuwedzera lenzi yekutarisa kana ziso rakasununguka:
Kureba kwemufananidzo chaiwo kubva kune lenzi yekutarisa (d ob '):
d ob ' = l – f oc = 15 cm – 1.25 cm = 13.75 cm
Kureba kwechinhu kubva kune lenzi yechinangwa (d ob ):
Kureba kwelenzi yekutarisa (f ob ):
Kureba kwe lenzi yekutarisa = 2.29 cm
3. Kureba kwelenzi yekutarisa chinhu i 0.9 cm uye kureba kwelenzi yekuona i 2.5 cm. Maikorosikopu inoshandiswa neziso rakajairika pasina kupindirana uye kukura kwese kunosvika ka90. Sarudza daro riri pakati pechinhu nelenzi yekutarisa chinhu. N = 25 cm.
Zvinozivikanwa:
Kureba kwe lenzi yekutarisa (f ob ) = 0.9 cm
Kureba kwelenzi yemaziso (f ok ) = 2,5 cm
Kukura kwese (M) = ka90
Nzvimbo iri pedyo neziso rakajairika (N) = 25 cm
Kugara kwemaziso kushoma.
Chinodiwa: Daro riri pakati pechinhu nelenzi yechinangwa (s ob )
Solution:
Equation yehukuru hwe angular hwese kana accommodation iri shoma:
Verenga daro rechinhu chiri pamusoro pe lenzi inonanga (s ob ) uchishandisa equation yehukama huri pakati pehurefu hwe lenzi inonanga (f ob ), daro riri pakati pechinhu ne lenzi inonanga (s ob ) uye daro riri pakati pemufananidzo ne lenzi inonanga (s ob '):
4. Kureba kwelenzi yekutarisa chinhu i1.8 cm uye kureba kwelenzi yekuona i6 cm. Maikorosikopu inoshandiswa neziso rakajairika pasina kupindirana, kureba kuri pakati pelenzi yekutarisa chinhu nelenzi yekuona i24 cm. Sarudza daro rechinhu kubva kune lenzi yekutarisa chinhu.
Zvinozivikanwa:
Kureba kwe lenzi yekutarisa (f ob ) = 1.8 cm
Kureba kwelenzi yemaziso (f ok ) = 6 cm
Kureba pakati pe lenzi yekutarisa ne lenzi yemaziso = kureba kwemaikorosikopu (l) = 24 cm
Pekugara ishoma.
Chinodiwa: Kureba pakati pechinhu ne lenzi yechinangwa (s ob )
Solution:
Kana nzvimbo iri shoma, daro riri pakati pemufananidzo wekupedzisira nelenzi yemaziso harina magumo, sezvakaratidzwa mumufananidzo uri pazasi.
Kureba kuri pakati pe lenzi ine chinangwa ne lenzi yemaziso (l) = kureba kwe lenzi ine chinangwa (f ok ) + kureba kuri pakati pemufananidzo ne lenzi ine chinangwa (s ob ').
s ob ' = l – f ok = 24 cm – 6 cm = 18 cm
Verenga daro riri pakati pechinhu ne lenzi inonanga (s ob ) uchishandisa equation yehukama huri pakati pehurefu hwe lenzi inonanga (f ob ), daro riri pakati pechinhu ne lenzi inonanga (s ob ) uye daro riri pakati pemufananidzo ne lenzi inonanga (s ob '):
Kureba pakati pechinhu chacho nelenzi yekutarisa chinhu i2 cm.
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