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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

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

A) O’zgarmaydi

B) 2marta kamayadi

C) 4marta ortadi

D) 5marta kamayadi

2 / 25

Moddalarnin issiqlik almashinishi natijasida tempraturalarga tenglashishi ...deyiladi

A) issiqlik muvozanati

B) ideal gaz

C) to’yingan bug’

D) tempratura

3 / 25

Odam va hayvonlar ichagidan oziqlantiruvchi moddalar qonunga qaysi fizik hodisa tufayli o’tadi

A) Diffuziya

B) Broun xarakati

C) Broun xarakati

D) Erish

4 / 25

Klapeyron - Mendelev tenglamashini ko’rsating

A) P₁V₁=P₂V₂

B) P₁/T₁= P₂/T₂

C) P₂V₁/T₁= P₂V₂/T₂

D) PV = mRT/M

5 / 25

Quyidagi keltirilgan formulalardan Mendelev Klapeyron tenglamasini ko’rsating

A) p=2/3 nEk

B) pV=T/=const

C) pV=RT

D) pV=m/MRT

6 / 25

Metallarni payvandlab ulash qaysi hodisaga asoslangan?

A) Molekulalar orasidagi tortitish kuchi

B) Molekulalarning atomlardan tashkil topishi

C) Broun harakati

D) Diffuziya

7 / 25

1 m ³ suvda necha molekula bor?

A) 3,3 * 10²⁸

B) 10⁵

C) 5 * 10²⁵

D) 6 * 10²³

8 / 25

Dinamika so‘zining ma’nosi nima

A) mashina

B) kuch

C) harakat

D) bo‘lak, parcha

9 / 25

Ochiq idishdagi 20⁰C tempraturali gazning zichligini 2marta kamaytirish uchun, uning tempraturasini qanchaga orttirish kerak

A) 203°C

B) 260°C

C) 190°C

D) 293°C

10 / 25

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

A) issiqlik muvozanati

B) issiqlik balansi

C) gaz xolat tenglamasi

D) tempratura muvozanati

11 / 25

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

A) T = - t - 273

B) T = t- 273

C) T = t + 273

D) T = 273 - t

12 / 25

150 gradus S tempratura Kelvin shkalasida nimaga teng

A) -123 K

B) -423 K

C) 423 K

D) 123 K

13 / 25

Termodinamikaning 1-qonuni formulasi

A) Q= l m

B) Q=L m

C) Q=cm Δt

D) Q=A+ΔU

14 / 25

Havodagi suv bug’larining to'yingan holda o'tadigan tempraturasi …………. deyiladi

A) absolyut tempraturasi

B) shudring tempraturasi

C) bug’lanish tempraturasi

D) qaynash tempraturasi

15 / 25

Sirt taranglik koeffitsiyenti formulasini ko'rsating

A) δ (sigma) = F/l

B) δ(sigma) = F/S

C) δ(sigma) =Q/m

D) δ(sigma) = Q/L

16 / 25

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

A) ν (nyu) = m / M

B) ν (nyu) = 1 / T

C) ν (nyu) = N / Na

D) ν (nyu) = Nm / M

17 / 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

18 / 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) 4

B) 1,2

C) 2,3,4

D) 1,2,3

19 / 25

Lazer nurining tarqalish burchagi qancha?

A) 10 -5 radian

B) 1 radian

C) 10 -2 radian

D) 10 -10 radian

20 / 25

Rentgen turibkasining rentgen spektridangi eng "Qattiq" nurlarining chastotasi 10¹⁹ gers bo'lsa bu turibka qanday kuchlanish ostida ishlayotgan bo'ladi. h=6.62*10^-34 Js e=1.6*10^-19 c

A) 140 kV

B) 200 kV

C) 40 kV

D) 100 kV

21 / 25

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

A) Fotoemissiya to’lqin uzunligi

B) Kvantning to’lqin uzunligi

C) Fotoeffektning qizil chegarasi

D) Nurlanish to’lqin uzunligi

22 / 25

Asosiy qismi ob’ektiv va kameradan iborat. Tasvir kameraning orqa tomonida to’nkarilgan, haqiqiy va kichraygan holda hosil bo’ladi. Nima haqida gap bormoqda?

A) Mikroskop

B) Fotoapparat

C) Proyeksion apparat

D) Epidiaskop

23 / 25

Fokus masofasi F, buyumdan linzagacha masofa d, linzadan tasvirgacha masofa f bo’lsa, d>2F, F

A) Fotoapparat va ko’z

B) Fotoapparat

C) Proyeksion apparat

D) Lupa

24 / 25

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

A) 300000

B) 150000

C) 200000

D) 225000

25 / 25

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

A) Linzaning suvga nisbatan nur sindirish ko’rsatkichi

B) Linzaning absolyut nur sindirish ko’rsatkichi

C) Sfera radiuslari nisbati

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

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9-sinf Fizika 4-chorak

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55% va kamiga 2 baho

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