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9-sinf Fizika 4-chorak

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May 21, 2021

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9-sinf Fizika 4-chorak

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1 / 25

Ko’zdan turli uzoqlikda joylashgan buyumlarni aniqroq ko’rish uchun mahsus muskullar ko’z gavharining egrilik radiusini bir oz o’zgartiradi. Bunga ... deyiladi?

A) Adaptatsiya

B) Akkomodatsiya

C) Ko’rish masofasini o’zgartirish

D) moslashish

2 / 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

C) Proyeksion apparat

D) Fotoapparat va ko’z

3 / 25

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

A) 2

B) 1

C) 3

D) 4

4 / 25

Bu nuqsonda ko’z gavhari nurlarni to’r parda orqasiga to’playdi. Nuqsonning nomini ayting. Bunday odamlar qanday linzadan yasalgan ko’zoynak taqadi?

A) Ranglarni ajratmaslik, botiq

B) Daltonizm, qavariq

C) Yaqindan ko’rarlik, botiq

D) Uzoqdan ko’rarlik, qavariq

5 / 25

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

A) 10

B) 0,1

C) 1

D) 8,3

6 / 25

1 m ³ suvda necha molekula bor?

A) 3,3 * 10²⁸

B) 5 * 10²⁵

C) 10⁵

D) 6 * 10²³

7 / 25

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

A) Avogadro 6*10²⁶ 1/ mol

B) Avogadro 6*10³⁴ 1/ mol

C) Avogadro 6*10²³ 1/ mol

D) Avogadro 6*10²⁴ 1/ mol

8 / 25

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

A) nisbiy molekulalar massa

B) molar massasi

C) moda miqdori

D) modda

9 / 25

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

A) 4 marta kamayadi

B) 2 marta kamayadi

C) 4 marta ortadi

D) 2 marta ortadi

10 / 25

Tempraturani o’lchash uchun qanday asbobdan foydalaniladi

A) gigrometr

B) termometr

C) psixrometr

D) Barometr

11 / 25

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

A) tempratura muvozanati

B) issiqlik balansi

C) issiqlik muvozanati

D) gaz xolat tenglamasi

12 / 25

150 gradus S tempratura Kelvin shkalasida nimaga teng

A) -123 K

B) 423 K

C) -423 K

D) 123 K

13 / 25

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

A) D = m / V

B) D = V / S

C) D = C / π

D) D = 2 – R

14 / 25

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

A) 4,6 * 10¯⁴² g

B) 4,6 * 10¯²⁴ g

C) 56 * 10¯²³ g

D) 4,6 * 10¯²³ g

15 / 25

Izotermik jarayon uchun termodinamikaning 1-qonuni

A) ΔU=-A

B) Q=A

C) Q= ΔU

D) Q= ΔU+A

16 / 25

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

A) issiqlik balansi

B) tempratura muvozanati

C) gaz xolat tenglamasi

D) issiqlik muvozanati

17 / 25

Selsiy shkalasining nol nuqtasi nimani bildiradi

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

B) Suvning kritik temperaturasi

C) Suvning qotish temperaturasi

D) Suvning qaynash temperaturasi

18 / 25

O’zgarmas temperaturada berilgan massali gaz hajmining unga mos kelgan bosimiga ko’paytmasi o’zgarmas kattalik . Bu qonun ……….. qonuni

A) Avogadro

B) Boyl-Mariott

C) Gey – Lyussak

D) Sharl

19 / 25

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

A) 2 marta ortadi

B) 2 marta kamayadi

C) 4 marta ortadi

D) 4 marta kamayadi

20 / 25

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

A) ν (nyu) = Nm / M

B) ν (nyu) = m / M

C) ν (nyu) = 1 / T

D) ν (nyu) = N / Na

21 / 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*10²⁶ 1/ mol

D) Avogadro 6*10²⁴ 1/ mol

22 / 25

Elektromagnit shkalasidagi nurlarning ketma-ketligini to'g’ri ko’rsating. 1) Infraqizil 2) Ko’zga ko’rinadagan 3) Radio 4) Ultrabinafsha 5) Gamma 6) Rentgen nurlari

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

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

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

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

23 / 25

Qaysi nurlarning zarracha hususiyati ko’proq

A) ko’zga ko’rinadigan

B) Rentgen

C) Ultirabinafsha

D) γ-nurlar

24 / 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) 1,2,3

C) 4

D) 1,2

25 / 25

Anod kuchlanishi 100kilovolt bo'lganda rentgen turibkasi anodiga yetib borayotgan elektronlarning kinetik energiyasi qanday bo’ladi? e=1,6*10^{-19 C qaysi raqamda berilgan}

1) 1,6*10^-14 J 2) 1,6*10^-19 J 3) 16 J 4) 160 J

A) 2

B) 4

C) 1

D) 3