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9-sinf Fizika 3-chorak

InfoMaster

May 21, 2021

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9-sinf Fizika 3-chorak

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1 / 25

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

A) Maksvell

B) Avogadro

C) Shtern

D) Broun

2 / 25

Selsiy shkalasining nol nuqtasi nimani bildiradi

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

B) Suvning kritik temperaturasi

C) Suvning qaynash temperaturasi

D) Suvning qotish temperaturasi

3 / 25

Ideal gaz temperaturasi va konsentratsiyasi 2 marta kamaysa, uning bosimi qanday o'zgaradi

A) 4 marta kamayadi

B) 2 marta kamayadi

C) 2 marta ortadi

D) 4 marta ortadi

4 / 25

Sirt taranglik koeffitsiyenti formulasini ko'rsating

A) δ(sigma) = Q/L

B) δ (sigma) = F/l

C) δ(sigma) = F/S

D) δ(sigma) =Q/m

5 / 25

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

A) bug’lanish tempraturasi

B) shudring tempraturasi

C) absolyut tempraturasi

D) qaynash tempraturasi

6 / 25

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

A) V₂ = R₁ P₂ V₁/ T₁ T₂

B) V₂ = P₁ V₁ T ₂ / T₁ P₂

C) V₂ = T₁ T₂ V₁ / P₁ P₂

D) V₂ = T₁ P₂ / P₁ V₁ T₂

7 / 25

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

A) D = m / V

B) D = C / π

C) D = V / S

D) D = 2 – R

8 / 25

Gazning o’zgarmas hajmida sodir bo'ladigan bir holatdan boshqa holatga o'tish jarayoni ……. jarayon deyiladi

A) izobarik

B) izotermik

C) adibatik

D) izoxorik

9 / 25

Klapeyron - Mendelev tenglamashini ko’rsating

A) PV = mRT/M

B) Pm = vRT/M

C) Pr = mRT/v

D) PV = RT/M

10 / 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

11 / 25

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

A) 260°C

B) 190°C

C) 203°C

D) 293°C

12 / 25

Sabzavotlarni tuzlash qaysi fizik hodisaga asoslangan

A) Diffuziya

B) Bug'lanish

C) Qaynash

D) Bug'lanish va Qaynash

13 / 25

Klapeyron - Mendelev tenglamashini ko’rsating

A) P₁/T₁= P₂/T₂

B) PV = mRT/M

C) P₂V₁/T₁= P₂V₂/T₂

D) P₁V₁=P₂V₂

14 / 25

1 m ³ suvda necha molekula bor?

A) 5 * 10²⁵

B) 10⁵

C) 3,3 * 10²⁸

D) 6 * 10²³

15 / 25

Universal gaz doimiysining qiymati va o'lchov birligini ko'rsating

A) R=8,31 J/mol K

B) K=1,38 J/K

C) P=3,14

D) R=8,31*10³ J/mol K

16 / 25

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

A) Fotoapparat

B) Lupa

C) Fotoapparat va ko’z

D) Proyeksion apparat

17 / 25

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

A) 8,3

B) 10

C) 0,1

D) 1

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) Yaqindan ko’rarlik, botiq

C) Uzoqdan ko’rarlik, qavariq

D) Daltonizm, qavariq

19 / 25

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

A) Lupa

B) Fotoapparat va ko’z

C) Proyeksion apparat

D) Fotoapparat

20 / 25

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

A) 25 sm

B) 10 sm

C) 15 sm

D) 20 sm

21 / 25

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

A) Sfera radiuslari nisbati

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

C) Linzaning suvga nisbatan nur sindirish ko’rsatkichi

D) Linzaning absolyut nur sindirish ko’rsatkichi

22 / 25

Elektromagnit to'lqinlar spektri ko’rinadigan qismining to’lqin uzunligi diapazonini ko’rsating (mikrometr)

A) Lyambda 0-10

B) Lyambda > 0,75

C) Lyambda 0,4 - 0,75

D) Lyambda < 0,4

23 / 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) Epidiaskop

B) Proyeksion apparat

C) Fotoapparat

D) Mikroskop

24 / 25

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

A) υ = at

B) c = λ / T

C) υ = S / t

D) υ = λ / ν

25 / 25

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

A) 10 dptr

B) 8 dptr

C) 4 dptr

D) 16 dptr

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9-sinf Fizika 3-chorak

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56%-70% 3 baho

55% va kamiga 2 baho

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