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9-sinf Fizika 4-chorak

InfoMaster

May 21, 2021

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9-sinf Fizika 4-chorak

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1 / 25

Buyum yig’uvchi linzadan d > 2F masofada joylashsa, uning tasviri qanday bo’ladi? F- linzaning fokus masofasi

A) Kattalashgan, to’g’ri, mavhum

B) Kattalashgan, teskari, mavhum

C) Kichiklashgan, teskari, haqiqiy

D) Kichiklashgan, to’g’ri, mavhum

2 / 25

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

A) υ = λ / ν

B) υ = S / t

C) υ = at

D) c = λ / T

3 / 25

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

A) Sfera radiuslari nisbati

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

C) Linzaning suvga nisbatan nur sindirish ko’rsatkichi

D) Linzaning absolyut nur sindirish ko’rsatkichi

4 / 25

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

A) Fotoapparat va ko’z

B) Proyeksion apparat

C) Fotoapparat

D) Lupa

5 / 25

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

A) 10

B) 0,1

C) 8,3

D) 1

6 / 25

1 m³ suvda necha molekula bor?

A) 5 * 10²⁵

B) 10⁵

C) 6 * 10²³

D) 3,3 * 10²⁸

7 / 25

100 K Selsiy shkalasida nimaga teng

A) - 373 gradus S

B) 373 gradus S

C) 100 gradus S

D) -173 gradus S

8 / 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) = N / Na

D) ν (nyu) = 1 / T

9 / 25

Izotermik jarayon uchun termodinamikaning 1-qonuni

A) Q= ΔU

B) Q= ΔU+A

C) ΔU=-A

D) Q=A

10 / 25

Gazning o’zgarmas hajmida sodir bo'ladigan bir holatdan boshqa holatga o'tish jarayoni ……. jarayon deyiladi

A) izoxorik

B) izobarik

C) adibatik

D) izotermik

11 / 25

Metallarni payvandlab ulash qaysi hodisaga asoslangan?

A) Diffuziya

B) Broun harakati

C) Molekulalarning atomlardan tashkil topishi

D) Molekulalar orasidagi tortitish kuchi

12 / 25

Quyidagi keltirilgan formulalardan Mendelev Klapeyron tenglamasini ko’rsating

A) pV=m/MRT

B) p=2/3 nEk

C) pV=T/=const

D) pV=RT

13 / 25

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

A) D = 2 – R

B) D = V / S

C) D = m / V

D) D = C / π

14 / 25

Tempraturani o’lchash uchun qanday asbobdan foydalaniladi

A) termometr

B) psixrometr

C) Barometr

D) gigrometr

15 / 25

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

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

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

C) 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

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

16 / 25

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

A) 4 marta ortadi

B) 4 marta kamayadi

C) 2 marta ortadi

D) 2 marta kamayadi

17 / 25

Universal gaz doimiysining qiymati va o'lchov birligini ko'rsating

A) K=1,38 J/K

B) R=8,31 J/mol K

C) R=8,31*10³ J/mol K

D) P=3,14

18 / 25

Klapeyron - Mendelev tenglamashini ko’rsating

A) P₁/T₁= P₂/T₂

B) PV = mRT/M

C) P₁V₁=P₂V₂

D) P₂V₁/T₁= P₂V₂/T₂

19 / 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

20 / 25

Dinamika so‘zining ma’nosi nima

A) bo‘lak, parcha

B) harakat

C) kuch

D) mashina

21 / 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

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

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

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

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

23 / 25

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

A) E=hc/λ

B) L=c/v

C) E=hv

D) λ=A/h

24 / 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) 40 kV

C) 200 kV

D) 140 kV

25 / 25

Aytilganlardan fotoeffekt hodisasiga asoslangan asboblarni ajrating. 1-fotodiod, 2- quyosh batareyalari, 3-foto tranzistor, 4- optron, 5- rezistor, 6-termobatareya

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

B) 1,6

C) 4,5,6

D) 1,2,3,4