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9-sinf Fizika 4-chorak

InfoMaster

May 21, 2021

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9-sinf Fizika 4-chorak

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1 / 25

Gapni davom ettiring. Moddaning 1 moliga to’g’ri kelgan massani kg (gr)larda ifodalangan qiymatiga ….deyiladi

A) moda miqdori

B) modda

C) nisbiy molekulalar massa

D) molar massasi

2 / 25

Quyidagi keltirilgan formulalardan Mendelev Klapeyron tenglamasini ko’rsating

A) pV=RT

B) pV=T/=const

C) p=2/3 nEk

D) pV=m/MRT

3 / 25

Birinchi bo’lib gaz molekulalarining harakat tezligini kim aniqlagan?

A) O.Shtern

B) L.Bolsman

C) J.Maksvel

D) Avogadro

4 / 25

Selsiy shkalasining nol nuqtasi nimani bildiradi

A) Suvning qotish temperaturasi

B) Suvning qaynash temperaturasi

C) Tabiatda bo’lishi mumkin bo'lgan eng past temperatura

D) Suvning kritik temperaturasi

5 / 25

Molekulalar kinetik nazariyaning asosiy qoidalari qaysi javobda to’liq bayon qilinngan

A) Modda m ayday zarralardan tashkil topgan va ular orasida o’zaro ta’sir kuchlari mavjud

B) Modda elementlar zarralardan tuziladi va ular bir-biriga to’xtovsiz aylanib turadi

C) Modda mayday bo’laklardan tuziladi va ular fazoni uzluksiz to’ldiradi

D) Moddalar mayda zarralar- molekulalar va atomlardan tashkil topgan, ular tartibsiz va to’xtovsiz harakatda, atom va molekulalar bir-birlari bilan o’zaro ta’sirda, moddalarning xossalari shu molekulalar harakati va o’zaro ta’siri biolan belgilanadi

6 / 25

Ideal gaz haroratining 2marta ko’tarilishi hajm birligidagi molekulalar sonining 2marta kamayishiga olib kelagan bo’lsa, uning bosimi qanday o’zgaradi

A) 2marta kamayadi

B) 5marta kamayadi

C) O’zgarmaydi

D) 4marta ortadi

7 / 25

Plank doimiysi qiymatini ko’rsating

A) 9,8 N/kg

B) 6,7*10 ¯^11 Nm²/kg²

C) 6,63*10¯³⁴ Js

D) 7,9 km/s

8 / 25

Kavnt energiyasi formulasi ko’rsating. 1. E=h v 2. E=hc/λ, 3. E=A, 4-E>A (v-nyu) (λ - lyambda)

A) 2,3,4

B) 4

C) 1,2

D) 1,2,3

9 / 25

Fotoeffekt uchun Eneshteyin formulasini ko’rsating

A) E>A

B) E = hc/λ

C) hv=A+mv²/2

D) E=h v (v-nyu)

10 / 25

Lazerlarda qanday nurlanish turi qo’llaniladi

A) Rentgen nurlari

B) Majburiy nurlanish

C) Issiqlikdan nurlanish

D) Tormozli nurlanish

11 / 25

1/F=(n-1)(1/R1+1/R2) formulada n nimani bildiradi?

A) Linzaning absolyut nur sindirish ko’rsatkichi

B) Sfera radiuslari nisbati

C) Linzaning suvga nisbatan nur sindirish ko’rsatkichi

D) Atrof-muxitning linzaga nisbatan nur sindirish ko’rsatkichi

12 / 25

Fokus masofasi F, buyumdan linzagacha masofa d, linzadan tasvirgacha masofa f bo’lsa, F2F munosabat aytilgan optik asboblarning qaysiciga to’gri keladi?

A) Fotoapparat va ko’z

B) Fotoapparat

C) Proyeksion apparat

D) Lupa

13 / 25

4 marta kattalashtirilgan lupaning optik kuchini (dptr) aniqlang. Buyumdan lupagacha bo'lgan masofa 5/16 m ga teng.

A) 16 dptr

B) 8 dptr

C) 10 dptr

D) 4 dptr

14 / 25

D = 1 / L₀ - 1 / d₁ formula yordamida nima aniqlanadi? L₀- sog’ ko'zning yaxshi ko'rish masofasi, d₁- nuqsonli ko’zning yaxshi ko’rish masofasi

A) Nuqsonni ko’z uchun ko’zoynak optik kuchini

B) Ko’zning eng yaxshi ko’rish masofasini

C) Linzaning optik kuchini

D) Linzaning fokus masofasini

15 / 25

Buyum linzadan 4F masofaga joylashtirilgan. Shu buyumning ekrandagi tasviri uning o’zidan necha marta kichik?

A) 4

B) 2

C) 1

D) 3

16 / 25

Yorug’lik tezligining to’lqin uzunligiga va tebranish davriga bog’liqlik formulasini ko’rsating

A) υ = S / t

B) υ = at

C) c = λ / T

D) υ = λ / ν

17 / 25

Fokus masofasi 12 sm bo’lgan qavarik linzaning optik kuchi (dptr) nimaga teng?

A) 1

B) 0,1

C) 8,3

D) 10

18 / 25

Bu nuqsonda ko’z gavhari tasvirni to’r pardada emas, balki uning old qismida hosil qiladi. Bunday odamlar qanday linzadan yasalgan ko’zoynak taqadi?

A) Ranglarni ajratmaslik, botiq

B) Uzoqdan ko’rarlik, qavariq

C) Daltonizm, qavariq

D) Yaqindan ko’rarlik, botiq

19 / 25

Izotermik jarayon uchun termodinamikaning 1-qonuni

A) Q= ΔU+A

B) Q=A

C) ΔU=-A

D) Q= ΔU

20 / 25

Moddaning bir moldagi atomlar yoki molekulalar soni ........ doimiysi deb ataladi, va uning qiymati ....?

A) Avogadro 6*10²⁴ 1/ mol

B) Avogadro 6*10²³ 1/ mol

C) Avogadro 6*10³⁴ 1/ mol

D) Avogadro 6*10²⁶ 1/ mol

21 / 25

Molekulalarning xarakat tezliklarini tajribada birinchi bo'lib ....... aniqlanadi

A) Shtern

B) Maksvell

C) Avogadro

D) Broun

22 / 25

Izoxorik jarayon uchun termodinamikaning 1-qonuni

A) Q= ΔU

B) Q= ΔU+A

C) ΔU=-A

D) Q=A

23 / 25

Suv sirtida moy tomchisi yoyilishidan foydalanib, molekula diametrini qaysi formuladan o'lchanishi mumkin

A) D = 2 – R

B) D = m / V

C) D = V / S

D) D = C / π

24 / 25

Azotning molyar massasi 0,028 kg/mol. Azot molekulasining massasi nimaga teng

A) 4,6 * 10¯⁴² g

B) 56 * 10¯²³ g

C) 4,6 * 10¯²⁴ g

D) 4,6 * 10¯²³ g

25 / 25

Selsiy shkalasidagi t temperatura Kelvin shkalasidagi tempratura bilan bog’lanish formulasi …. ?

A) T = t + 273

B) T = 273 - t

C) T = t- 273

D) T = - t - 273

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9-sinf Fizika 4-chorak

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