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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.

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1 / 25

Berilgan tenglamalardan qaysi biri izoxorik jarayonni ifodalaydi?

A) v=m/M

B) pV=const

C) p/T=const

D) pT=const

2 / 25

Diffuziya tezligi nimaga bog’liq

A) Modda tempraturasiga

B) modda zichligiga

C) modda miqdoriga

D) tashqi bosimga

3 / 25

Tempraturani o’lchash uchun qanday asbobdan foydalaniladi

A) termometr

B) psixrometr

C) gigrometr

D) Barometr

4 / 25

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

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

B) 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

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

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

5 / 25

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

A) Maksvell

B) Shtern

C) Avogadro

D) Broun

6 / 25

Quvvati 100 vatt bo’lgan yorug’lik manbai 1s ichida 5*10²⁰ ta foton chiqaradi. Nurlanishning to’lqin uzunligini toping(mikrometr)

A) 4,5

B) 2,3

C) 10

D) 0,99

7 / 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) 3

D) 1

8 / 25

Yorug’lik ta’siri moddadan elektronlar ajralishi..... deyiladi

A) Elektrlanish

B) Magnitlanish

C) fotoeffekt

D) termoyelektron emissiya

9 / 25

Fotoeffektning"Qizil chegarasi"ni topish formulasini ko’rsating. (v-nyu) (λ - lyambda)

A) λ=A/h

B) E=hv

C) L=c/v

D) E=hc/λ

10 / 25

Lazer nurining tarqalish burchagi qancha?

A) 10 -5 radian

B) 1 radian

C) 10 -10 radian

D) 10 -2 radian

11 / 25

Termodinamikaning 1-qonuni formulasi

A) Q=A+ΔU

B) Q=cm Δt

C) Q=L m

D) Q= l m

12 / 25

Sirt taranglik koeffitsiyenti formulasini ko'rsating

A) δ(sigma) = F/S

B) δ (sigma) = F/l

C) δ(sigma) =Q/m

D) δ(sigma) = Q/L

13 / 25

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

A) 4,6 * 10¯⁴² g

B) 56 * 10¯²³ g

C) 4,6 * 10¯²³ g

D) 4,6 * 10¯²⁴ g

14 / 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

15 / 25

150 gradus S tempratura Kelvin shkalasida nimaga teng

A) -423 K

B) -123 K

C) 423 K

D) 123 K

16 / 25

Klapeyron - Mendelev tenglamashini ko’rsating

A) Pr = mRT/v

B) PV = RT/M

C) PV = mRT/M

D) Pm = vRT/M

17 / 25

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

A) Lupa

B) Fotoapparat va ko’z

C) Fotoapparat

D) Proyeksion apparat

18 / 25

Muhit nur sindirish ko’rsatkichining yorug’lik to’lqin uzunligiga bog’liq bo’lishiga yorug’lik ... deyiladi?

A) Sinish

B) Dispersiya

C) Interferensiya

D) Difraksiya

19 / 25

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

A) 1

B) 0,1

C) 8,3

D) 10

20 / 25

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

A) Fotoapparat

B) Fotoapparat va ko’z

C) Proyeksion apparat

D) Lupa

21 / 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) Linzaning optik kuchini

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

C) Ko’zning eng yaxshi ko’rish masofasini

D) Linzaning fokus masofasini

22 / 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

23 / 25

Nur havodan suvga tushmoqda. Bunda to’la ichki qaytish hodisasini kuzatish mumkinmi?

A) Yo’q

B) Suv qatlamining qalinligiga bog’liq

C) Ha

D) Nurning tushish burchagiga bog’liq

24 / 25

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

A) Lyambda < 0,4

B) Lyambda 0,4 - 0,75

C) Lyambda > 0,75

D) Lyambda 0-10

25 / 25

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

A) c = λ / T

B) υ = at

C) υ = λ / ν

D) υ = S / t

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9-sinf Fizika 4-chorak

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86%-100% 5 baho

71%-85% 4 baho

56%-70% 3 baho

55% va kamiga 2 baho

Author: InfoMaster

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