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9-sinf Fizika 4-chorak

InfoMaster

May 21, 2021

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9-sinf Fizika 4-chorak

Testni Vafaqulov Alisher tayyorladi.

Ismi familiyangizni kriting:

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1 / 25

Sabzavotlarni tuzlash qaysi fizik hodisaga asoslangan

A) Diffuziya

B) Qaynash

C) Bug'lanish

D) Bug'lanish va Qaynash

2 / 25

Klapeyron - Mendelev tenglamashini ko’rsating

A) PV = mRT/M

B) P₂V₁/T₁= P₂V₂/T₂

C) P₁V₁=P₂V₂

D) P₁/T₁= P₂/T₂

3 / 25

Quyidagi keltirilgan formulalardan Mendelev Klapeyron tenglamasini ko’rsating

A) pV=RT

B) pV=m/MRT

C) p=2/3 nEk

D) pV=T/=const

4 / 25

Moddalarnin issiqlik almashinishi natijasida tempraturalarga tenglashishi ...deyiladi

A) issiqlik muvozanati

B) tempratura

C) ideal gaz

D) to’yingan bug’

5 / 25

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

A) D = m / V

B) D = 2 – R

C) D = C / π

D) D = V / S

6 / 25

Dinamika so‘zining ma’nosi nima

A) harakat

B) kuch

C) mashina

D) bo‘lak, parcha

7 / 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) Kvantning to’lqin uzunligi

D) Fotoeffektning qizil chegarasi

8 / 25

Lazer nurining tarqalish burchagi qancha?

A) 1 radian

B) 10 -5 radian

C) 10 -2 radian

D) 10 -10 radian

9 / 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) 3

B) 4

C) 2

D) 1

10 / 25

Sirt taranglik koeffitsiyenti formulasini ko'rsating

A) δ (sigma) = F/l

B) δ(sigma) =Q/m

C) δ(sigma) = Q/L

D) δ(sigma) = F/S

11 / 25

1 m³ suvda necha molekula bor?

A) 6 * 10²³

B) 5 * 10²⁵

C) 10⁵

D) 3,3 * 10²⁸

12 / 25

Izoxorik jarayon uchun termodinamikaning 1-qonuni

A) ΔU=-A

B) Q= ΔU+A

C) Q=A

D) Q= ΔU

13 / 25

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

A) Broun

B) Avogadro

C) Maksvell

D) Shtern

14 / 25

150 gradus S tempratura Kelvin shkalasida nimaga teng

A) 423 K

B) -123 K

C) -423 K

D) 123 K

15 / 25

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

A) 4,6 * 10¯⁴² g

B) 4,6 * 10¯²³ g

C) 56 * 10¯²³ g

D) 4,6 * 10¯²⁴ g

16 / 25

Selsiy shkalasining nol nuqtasi nimani bildiradi

A) Suvning kritik temperaturasi

B) Suvning qaynash temperaturasi

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

D) Suvning qotish temperaturasi

17 / 25

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

A) 3

B) 1

C) 2

D) 4

18 / 25

Yorug’likning vakuumdagi tezligi (m/s)

A) 30 000

B) 3 000

C) 300 000 000

D) 200 000 000

19 / 25

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

A) Fotoapparat

B) Fotoapparat va ko’z

C) Lupa

D) Proyeksion apparat

20 / 25

Nur suvdan havoga tushmoqda. Bunda to’la ichki qaytish hodisasini kuzatish mumkinmi?

A) Nurning tushish burchagiga bog’liq

B) Yo’q

C) Ha

D) Suv qatlamining qalinligiga bog’liq

21 / 25

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

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

B) Linzaning suvga nisbatan nur sindirish ko’rsatkichi

C) Sfera radiuslari nisbati

D) Linzaning absolyut nur sindirish ko’rsatkichi

22 / 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) moslashish

C) Ko’rish masofasini o’zgartirish

D) Akkomodatsiya

23 / 25

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

A) υ = S / t

B) c = λ / T

C) υ = λ / ν

D) υ = at

24 / 25

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

A) 10 dptr

B) 4 dptr

C) 16 dptr

D) 8 dptr

25 / 25

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

A) Proyeksion apparat

B) Lupa

C) Fotoapparat va ko’z

D) Fotoapparat