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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) Elektromagnit to’lqin

B) Fotonlar oqimi

C) ham to’lqin, ham zarracha tabiatiga ega

D) Mexanik to’lqin

2 / 25

Ftoeffekt hodisasi vujudga kelish uchun moddaga tushgan yorug’ to'lqin uzunligining minimal qiymatiga ....... deyilad

A) Kvantning to’lqin uzunligi

B) Fotoeffektning qizil chegarasi

C) Fotoemissiya to’lqin uzunligi

D) Nurlanish to’lqin uzunligi

3 / 25

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

A) L=c/v

B) λ=A/h

C) E=hv

D) E=hc/λ

4 / 25

Fotoeffekt uchun Eneshteyin formulasini ko’rsating

A) E = hc/λ

B) E>A

C) hv=A+mv²/2

D) E=h v (v-nyu)

5 / 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) 140 kV

B) 200 kV

C) 100 kV

D) 40 kV

6 / 25

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

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

B) Linzaning absolyut nur sindirish ko’rsatkichi

C) Linzaning suvga nisbatan nur sindirish ko’rsatkichi

D) Sfera radiuslari nisbati

7 / 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) 50

C) 12,5

D) 6,25

8 / 25

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

A) 8 dptr

B) 16 dptr

C) 4 dptr

D) 10 dptr

9 / 25

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

A) Yo’q

B) Suv qatlamining qalinligiga bog’liq

C) Nurning tushish burchagiga bog’liq

D) Ha

10 / 25

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

A) 1

B) 4

C) 2

D) 3

11 / 25

Selsiy shkalasidagi t temperatura Kelvin shkalasidagi tempratura bilan bog’lanish formulasi …. ?

A) T = 273 - t

B) T = - t - 273

C) T = t + 273

D) T = t- 273

12 / 25

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

A) 2 marta kamayadi

B) 4 marta kamayadi

C) 2 marta ortadi

D) 4 marta ortadi

13 / 25

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

A) absolyut tempraturasi

B) shudring tempraturasi

C) qaynash tempraturasi

D) bug’lanish tempraturasi

14 / 25

150 gradus S tempratura Kelvin shkalasida nimaga teng

A) -123 K

B) -423 K

C) 123 K

D) 423 K

15 / 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

16 / 25

1 m³ suvda necha molekula bor?

A) 3,3 * 10²⁸

B) 5 * 10²⁵

C) 10⁵

D) 6 * 10²³

17 / 25

100 K Selsiy shkalasida nimaga teng

A) - 373 gradus S

B) -173 gradus S

C) 373 gradus S

D) 100 gradus S

18 / 25

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

A) Avogadro 6*10²³ 1/ mol

B) Avogadro 6*10³⁴ 1/ mol

C) Avogadro 6*10²⁴ 1/ mol

D) Avogadro 6*10²⁶ 1/ mol

19 / 25

Metallarni payvandlab ulash qaysi hodisaga asoslangan?

A) Molekulalar orasidagi tortitish kuchi

B) Broun harakati

C) Diffuziya

D) Molekulalarning atomlardan tashkil topishi

20 / 25

Diffuziya tezligi nimaga bog’liq

A) Modda tempraturasiga

B) tashqi bosimga

C) modda zichligiga

D) modda miqdoriga

21 / 25

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

A) Broun

B) Maksvell

C) Shtern

D) Avogadro

22 / 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

23 / 25

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

A) moda miqdori

B) nisbiy molekulalar massa

C) molar massasi

D) modda

24 / 25

1 m ³ suvda necha molekula bor?

A) 5 * 10²⁵

B) 10⁵

C) 3,3 * 10²⁸

D) 6 * 10²³

25 / 25

Sabzavotlarni tuzlash qaysi fizik hodisaga asoslangan

A) Bug'lanish va Qaynash

B) Diffuziya

C) Bug'lanish

D) Qaynash

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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9-sinf Fizika 4-chorak

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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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