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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

Ftoeffekt hodisasi vujudga kelish uchun moddaga tushgan yorug’ to'lqin uzunligining minimal qiymatiga ....... deyilad

A) Fotoemissiya to’lqin uzunligi

B) Nurlanish to’lqin uzunligi

C) Fotoeffektning qizil chegarasi

D) Kvantning to’lqin uzunligi

2 / 25

Aytilganlardan fotoeffekt hodisasiga asoslangan asboblarni ajrating. 1-fotodiod, 2- quyosh batareyalari, 3-foto tranzistor, 4- optron, 5- rezistor, 6-termobatareya

A) 1,2,3,4,5,6

B) 4,5,6

C) 1,6

D) 1,2,3,4

3 / 25

Plank doimiysi qiymatini ko’rsating

A) 7,9 km/s

B) 6,63*10¯³⁴ Js

C) 6,7*10 ¯^11 Nm²/kg²

D) 9,8 N/kg

4 / 25

Diffuziya tezligi nimaga bog’liq

A) tashqi bosimga

B) modda miqdoriga

C) modda zichligiga

D) Modda tempraturasiga

5 / 25

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

A) 5marta kamayadi

B) O’zgarmaydi

C) 4marta ortadi

D) 2marta kamayadi

6 / 25

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

A) nisbiy molekulalar massa

B) modda

C) moda miqdori

D) molar massasi

7 / 25

1 m ³ suvda necha molekula bor?

A) 3,3 * 10²⁸

B) 6 * 10²³

C) 10⁵

D) 5 * 10²⁵

8 / 25

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

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

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

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

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

9 / 25

Moddalarning issiqlik almashinishi ish natijasida tempraturalari tenglashishiga ......... aytiladi

A) tempratura muvozanati

B) issiqlik balansi

C) issiqlik muvozanati

D) gaz xolat tenglamasi

10 / 25

Dinamika so‘zining ma’nosi nima

A) bo‘lak, parcha

B) mashina

C) kuch

D) harakat

11 / 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) Ko’zning eng yaxshi ko’rish masofasini

B) Linzaning optik kuchini

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

D) Linzaning fokus masofasini

12 / 25

Normal ko’rish qobiliyatiga ega bo’lgan kishi yassi ko’zguda o’z betining tasvirga diqqat bilan qaraganda ko’zguni qanday masofada (sm) tutib turish lozim?

A) 50

B) 25

C) 6,25

D) 12,5

13 / 25

Normal ko’z uchun eng yaxshi ko’rish masofasi qanchaga teng?

A) 10 sm

B) 15 sm

C) 20 sm

D) 25 sm

14 / 25

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

A) 4 dptr

B) 8 dptr

C) 10 dptr

D) 16 dptr

15 / 25

Yorug’lik suvda qanday tezlik (km/s) bilan tarqaladi? Suvning vakuumga nisbatan nur sindirish ko’rsatkichi 1,33 ga teng.

A) 150000

B) 300000

C) 200000

D) 225000

16 / 25

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

A) Sfera radiuslari nisbati

B) Linzaning absolyut nur sindirish ko’rsatkichi

C) Linzaning suvga nisbatan nur sindirish ko’rsatkichi

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

17 / 25

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

A) D = C / π

B) D = 2 – R

C) D = m / V

D) D = V / S

18 / 25

1 m³ suvda necha molekula bor?

A) 6 * 10²³

B) 3,3 * 10²⁸

C) 5 * 10²⁵

D) 10⁵

19 / 25

Sirt taranglik koeffitsiyenti formulasini ko'rsating

A) δ (sigma) = F/l

B) δ(sigma) = Q/L

C) δ(sigma) = F/S

D) δ(sigma) =Q/m

20 / 25

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

A) 4,6 * 10¯²³ g

B) 56 * 10¯²³ g

C) 4,6 * 10¯²⁴ g

D) 4,6 * 10¯⁴² g

21 / 25

P1 V1 / T1 = P2 V2 / T2 formuladan V2 ifodasini toping

A) V₂ = T₁ P₂ / P₁ V₁ T₂

B) V₂ = P₁ V₁ T ₂ / T₁ P₂

C) V₂ = T₁ T₂ V₁ / P₁ P₂

D) V₂ = R₁ P₂ V₁/ T₁ T₂

22 / 25

Selsiy shkalasining nol nuqtasi nimani bildiradi

A) Suvning kritik temperaturasi

B) Suvning qaynash temperaturasi

C) Suvning qotish temperaturasi

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

23 / 25

Jismdagi modda miqdori undagi molekulalar sonini Avogadro doimiysi nisbatiga teng. Shu formulani ko'rsating

A) ν (nyu) = m / M

B) ν (nyu) = Nm / M

C) ν (nyu) = 1 / T

D) ν (nyu) = N / Na

24 / 25

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

A) Avogadro 6*10³⁴ 1/ mol

B) Avogadro 6*10²³ 1/ mol

C) Avogadro 6*10²⁴ 1/ mol

D) Avogadro 6*10²⁶ 1/ mol

25 / 25

m= const, V=const bo’lganda P/T =const. Bu ifodalar qaysi qonunga talluqli

A) izobarik

B) izotermik

C) adibatik

D) izaxorik

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9-sinf Fizika 4-chorak

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56%-70% 3 baho

55% va kamiga 2 baho

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