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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

Yorug’lik tabiatiga qarashlar: Yorug’lik bu

A) Mexanik to’lqin

B) Fotonlar oqimi

C) Elektromagnit to’lqin

D) ham to’lqin, ham zarracha tabiatiga ega

2 / 25

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

A) termoyelektron emissiya

B) fotoeffekt

C) Elektrlanish

D) Magnitlanish

3 / 25

Atomning uyg’ongan holatda bo’lish vaqti qancha va qaysi raqamda berilgan

1) 10^-2 -- 10^-5s 2) 10 -- 20 s 3 )1 - 2 s 4)10^-7 -- 10^-8 s

A) 3

B) 2,1

C) 1

D) 4

4 / 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) 100 kV

B) 140 kV

C) 40 kV

D) 200 kV

5 / 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) 1

B) 3

C) 2

D) 4

6 / 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) Ko’zning eng yaxshi ko’rish masofasini

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

C) Linzaning fokus masofasini

D) Linzaning optik kuchini

7 / 25

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

A) Ha

B) Yo’q

C) Nurning tushish burchagiga bog’liq

D) Suv qatlamining qalinligiga bog’liq

8 / 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

9 / 25

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

A) 16 dptr

B) 8 dptr

C) 10 dptr

D) 4 dptr

10 / 25

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

A) Sfera radiuslari nisbati

B) Linzaning suvga nisbatan nur sindirish ko’rsatkichi

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

D) Linzaning absolyut nur sindirish ko’rsatkichi

11 / 25

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

A) 8,3

B) 1

C) 10

D) 0,1

12 / 25

Normal ko’rish qobiliyatiga ega bo’lgan kishi yassi ko’zguda o’z betining tasvirga diqqat bilan qaraganda ko’zguni qanday masofada (sm) tutib turish lozim?

A) 25

B) 6,25

C) 12,5

D) 50

13 / 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

14 / 25

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

A) 4 marta ortadi

B) 2 marta ortadi

C) 4 marta kamayadi

D) 2 marta kamayadi

15 / 25

1 m³ suvda necha molekula bor?

A) 3,3 * 10²⁸

B) 6 * 10²³

C) 10⁵

D) 5 * 10²⁵

16 / 25

150 gradus S tempratura Kelvin shkalasida nimaga teng

A) -423 K

B) 423 K

C) -123 K

D) 123 K

17 / 25

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

A) Sharl

B) Avogadro

C) Gey – Lyussak

D) Boyl-Mariott

18 / 25

1 m ³ suvda necha molekula bor?

A) 5 * 10²⁵

B) 6 * 10²³

C) 10⁵

D) 3,3 * 10²⁸

19 / 25

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

A) Avogadro

B) Broun

C) Maksvell

D) Shtern

20 / 25

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

A) 293°C

B) 203°C

C) 260°C

D) 190°C

21 / 25

Tempraturani o’lchash uchun qanday asbobdan foydalaniladi

A) termometr

B) Barometr

C) psixrometr

D) gigrometr

22 / 25

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

A) 2 marta ortadi

B) 4 marta ortadi

C) 4 marta kamayadi

D) 2 marta kamayadi

23 / 25

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

A) D = V / S

B) D = 2 – R

C) D = C / π

D) D = m / V

24 / 25

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

A) Diffuziya

B) Broun xarakati

C) Erish

D) Broun xarakati

25 / 25

Birinchi bo’lib gaz molekulalarining harakat tezligini kim aniqlagan?

A) O.Shtern

B) Avogadro

C) L.Bolsman

D) J.Maksvel

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9-sinf Fizika 4-chorak

Ismi familiyangizni kriting:

Baholash mezoni

86%-100% 5 baho

71%-85% 4 baho

56%-70% 3 baho

55% va kamiga 2 baho

Author: InfoMaster

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