Fizika (30.11.2025)

45 ta savol · saqlash uchun kiring

Fizika formulalar varaqasi / Лист формул по физике

Doimiy fizik kattaliklar / Физические постоянные

Kattalik	Qiymati
Erkin tushish tezlanishi	$g \approx 10\ \text{m/s}^2$
Gravitatsiya doimiysi	$G = \frac{20}{3}\cdot10^{-11}\ \frac{\text{N}\cdot\text{m}^2}{\text{kg}^2}$
Universal gaz doimiysi	$R = 8{,}31\ \text{J/(mol}\cdot\text{K)}$
Bolsman doimiysi	$k = 1{,}38\cdot10^{-23}\ \text{J/K}$
Avogadro soni	$N_A = 6\cdot10^{23}\ \text{mol}^{-1}$
Elementar zaryad	$e = 1{,}6\cdot10^{-19}\ \text{C}$
Kulon qonuni koeffitsiyenti	$k = 9\cdot10^{9}\ \frac{\text{N}\cdot\text{m}^2}{\text{C}^2}$
Elektr doimiysi	$\varepsilon_0 = 8{,}85\cdot10^{-12}\ \frac{\text{F}}{\text{m}}$
Magnit doimiysi	$\mu_0 = 4\pi\cdot10^{-7}\ \text{N/A}^2$
Yorug'likning vakuumdagi tezligi	$c = 3\cdot10^{8}\ \text{m/s}$
Plank doimiysi	$h = 4{,}125\cdot10^{-15}\ \text{eV}\cdot\text{s}$
Plank doimiysi	$h = 6{,}6\cdot10^{-34}\ \text{J}\cdot\text{s}$

O'nli old qo'shimchalar / Десятичные приставки

Old qo'shimcha	Ko'paytuvchi
T — tera	$10^{12}$
G — giga	$10^{9}$
M — mega	$10^{6}$
k — kilo	$10^{3}$
d — detsi	$10^{-1}$
c — santi	$10^{-2}$
m — milli	$10^{-3}$
$\mu$ — mikro	$10^{-6}$
n — nano	$10^{-9}$
p — piko	$10^{-12}$

Mexanika / Механика

v=\frac{\Delta S}{\Delta t};\quad a=\frac{\Delta v}{\Delta t};\quad S=v_0t+\frac{at^2}{2};\quad \omega=\frac{\Delta\varphi}{\Delta t};\quad \varepsilon=\frac{\Delta\omega}{\Delta t};\quad \varphi=\omega_0t+\frac{\varepsilon t^2}{2};

\omega=2\pi\nu;\quad v=\omega r;\quad \nu\cdot T=1;\quad v=v_0\pm gt;\quad h=v_0t\pm\frac{gt^2}{2};

v_{0x}=v_0\cos\alpha;\quad v_{0y}=v_0\sin\alpha;\quad t_u=\frac{2v_{0y}}{g};\quad h_{max}=\frac{v_{0y}^2}{2g};\quad S=v_{0x}\cdot t_u;

\vec{a}=\vec{a}_\tau+\vec{a}_n;\quad a_n=\frac{v^2}{r};\quad m=\rho V;\quad \vec{a}=\frac{\vec{F}}{m};\quad \vec{F}_1=-\vec{F}_2;\quad F_{el}=-k\Delta\ell;

a=g(\sin\alpha\pm\mu\cos\alpha);\quad \vec{p}=m\vec{v};\quad \vec{F}\Delta t=\Delta\vec{p};\quad E_k=\frac{mv^2}{2};

M=F\ell;\quad F_1\ell_1=F_2\ell_2;\quad F_{ish}=\mu N;\quad N=\frac{A}{t}=\vec{F}\vec{v};

A=FS\cos\alpha;\quad E_p=mgh;\quad E_k+E_p=\text{const};\quad \vec{P}=m(\vec{g}-\vec{a});

g=\frac{GM}{R^2};\quad v_1=\sqrt{gR};\quad v_2=\sqrt{2gR};\quad x=A\cdot\sin(\omega t+\varphi_0);\quad v=\sqrt{\frac{T}{\rho_{ch}}};

v=\sqrt{\frac{E}{\rho}};\quad \omega=\sqrt{\frac{k}{m}};\quad T=2\pi\sqrt{\frac{m}{k}};\quad \omega=\sqrt{\frac{g}{\ell}};\quad T=2\pi\sqrt{\frac{\ell}{g}};\quad \Delta\ell=\ell-\ell_0;

\varepsilon=\frac{\Delta\ell}{\ell_0};\quad k=\frac{ES}{\ell_0};\quad F_A=\rho_sV_bg;\quad p=\rho gh;\quad S_1v_1=S_2v_2;

V_b=\frac{\rho_jV_j}{\rho_s};\quad p+\rho gh+\frac{\rho v^2}{2}=\text{const}.

Molekulyar fizika / Молекулярная физика

\nu=\frac{N}{N_A}=\frac{m}{M};\quad n=\frac{N}{V};\quad d=\sqrt[3]{\frac{VM}{mN_A}};\quad \rho=nm_0;

p=\frac{2}{3}n\bar{E}_k=\frac{1}{3}\rho\bar{v}^2=nkT;\quad \bar{E}_k=\frac{m_0\bar{v}^2}{2}=\frac{3}{2}kT;

\bar{v}=\sqrt{\frac{3RT}{M}}=\sqrt{\frac{3kT}{m_0}};\quad T=t+273;

pV=\nu RT;\quad p=\frac{\rho}{M}RT;\quad \frac{pV}{T}=\text{const};\quad Q=\Delta U+A;

A=p\Delta V;\quad \Delta U=\frac{3}{2}(p_2V_2-p_1V_1)=\frac{3}{2}\nu RT;\quad C=\frac{Q}{T_2-T_1};

c=\frac{Q}{m(T_2-T_1)};\quad \lambda=\frac{Q}{m};\quad r=\frac{Q}{m};\quad q=\frac{Q}{m};

\eta=\frac{Q_1-Q_2}{Q_1}\cdot100\ \%=\frac{T_1-T_2}{T_1}\cdot100\ \%;\quad F=\sigma l;

\sigma=\frac{F}{S};\quad \sigma=E|\varepsilon|;\quad W=\sigma S;\quad h=\frac{2\sigma}{\rho gr};\quad \Delta p=\frac{2\sigma}{R};

\rho=\frac{m}{V};\quad \varphi=\frac{\rho}{\rho_0}\cdot100\ \%=\frac{p}{p_0}\cdot100\ \%.

Elektr va magnetizm / Электричество и магнетизм

F=\frac{k|qQ|}{\varepsilon r^2};\quad E=\frac{k|Q|}{\varepsilon r^2};\quad F=qE;\quad \varphi=\frac{kQ}{\varepsilon r};\quad W_p=q\varphi;

E=\frac{\varphi_1-\varphi_2}{d};\quad A=q(\varphi_1-\varphi_2);\quad W_{el}=\frac{qU}{2};\quad C=\frac{\varepsilon\varepsilon_0S}{d};\quad q=CU;

W=\frac{\varepsilon\varepsilon_0E^2}{2};\quad C_p=C_1+C_2+\cdots+C_N;\quad \frac{1}{C_{k-k}}=\frac{1}{C_1}+\frac{1}{C_2}+\cdots+\frac{1}{C_N};

E=\frac{U}{d}=\frac{\sigma}{\varepsilon\varepsilon_0};\quad I=\frac{U}{R};\quad Q=I^2Rt;\quad P=IU;\quad I=ne\bar{v}S;\quad j=\frac{I}{S};

q=It;\quad E=\rho j;\quad R=\frac{\rho l}{S};\quad R=R_0(1+\alpha\Delta t);\quad R_{k-k}=R_1+R_2+\cdots+R_N;

\frac{1}{R_p}=\frac{1}{R_1}+\frac{1}{R_2}+\cdots+\frac{1}{R_N};\quad \mathcal{E}=\frac{A_{chet}}{q};\quad I=\frac{\mathcal{E}}{R+r};\quad \eta=\frac{R}{R+r}=\frac{U}{\mathcal{E}};

I_a=kU^{\frac{3}{2}};\quad T=2\pi\sqrt{LC};\quad \omega=\frac{1}{\sqrt{LC}};\quad W=\frac{q^2}{2C}+\frac{LI^2}{2};

Z=\sqrt{R^2+\left(\omega L-\frac{1}{\omega C}\right)^2};\quad I=\frac{U}{Z};\quad \cos\varphi=\frac{R}{Z};\quad P=I^2R=IU\cos\varphi;

I=\frac{I_0}{\sqrt{2}};\quad U=\frac{U_0}{\sqrt{2}};\quad B=\frac{\mu_0I}{2\pi R};\quad B=\frac{\mu_0I}{2R};\quad F=\frac{\mu\mu_0I_1I_2}{2\pi d}l;

F_A=BIl\sin\alpha;\quad F_L=qvB\sin\alpha;\quad R=\frac{mv}{qB};\quad T=\frac{2\pi m}{qB};\quad \omega=\frac{qB}{m};

\Phi=NBS\cos\alpha;\quad \Phi=LI;\quad W=\frac{\Phi I}{2}=\frac{LI^2}{2};\quad \mathcal{E}=-\frac{\Delta\Phi}{\Delta t}=-L\frac{\Delta I}{\Delta t}.

Optika, kvant, atom va yadro fizikasi. Nisbiylik nazariyasi

n=\frac{c}{v}=\sqrt{\varepsilon\mu};\quad \frac{\sin\alpha}{\sin\beta}=\frac{n_2}{n_1};\quad \pm\frac{1}{F}=\frac{1}{d}\pm\frac{1}{f};\quad D=\pm\frac{1}{F};

k=\frac{f}{d};\quad \frac{1}{F}=\left(\frac{n_l}{n_m}-1\right)\left(\pm\frac{1}{R_1}\pm\frac{1}{R_2}\right);\quad I=\frac{P}{S}=\mathcal{W}v;\quad I\sim\omega^4;

d\sin\varphi=k\lambda;\quad \lambda_m=\frac{b}{T};\quad I=\frac{I_0}{2};\quad I=I_0\cos^2\alpha;\quad I=\frac{\Phi}{\Omega};

E=\frac{\Phi}{S}=\frac{I}{R^2}\cos\varphi;\quad E=h\nu;\quad p=\frac{h\nu}{c}=\frac{h}{\lambda};\quad I=\frac{N}{S\cdot t}h\nu;

h\nu=A_{ch}+E_k^{max};\quad E_k^{max}=eU_{yop};\quad h\nu_{min}=\frac{hc}{\lambda_{max}}=A_{ch};

E_n=\frac{E_1}{n^2};\quad E_1=-13{,}6\ eV;\quad h\nu=E_n-E_m;\quad m_ev_nr_n=n\hbar;

r_n=n^2r_B;\quad v_n=\frac{v_1}{n};\quad E_{bog'}=\Delta mc^2;\quad E_{sol}=\frac{E_{bog'}}{A};

A=-\frac{dN}{dt};\quad N=N_0e^{-\lambda t}=N_0 2^{-\frac{t}{T}};\quad \lambda T=\ln 2\approx0{,}7;

\tau=\frac{\tau_0}{\sqrt{1-\frac{v^2}{c^2}}};\quad l=l_0\sqrt{1-\frac{v^2}{c^2}};\quad \rho=\frac{\rho_0}{1-\frac{v^2}{c^2}};\quad v=\frac{v_1+v_2}{1\pm\frac{v_1v_2}{c^2}};

m=\frac{m_0}{\sqrt{1-\frac{v^2}{c^2}}};\quad E_0=m_0c^2;\quad E=mc^2;\quad \vec{p}=m\vec{v};

E_k=(m-m_0)c^2;\quad E^2-c^2p^2=m_0^2c^4.

Moddalar va ularning xossalari / Вещества и их свойства

Zichlik (kg/m$^3$) / Плотность

Modda	Zichlik
benzin	700
kerosin	800
suv (4 °C)	1000
spirt	800
simob	13600
alyuminiy	2700
muz	900
mis	8900
po'lat	7800
temir	7800

Solishtirma issiqlik sig'imi (J/(kg·K)) / Удельная теплоёмкость

Modda	Qiymat
alyuminiy	900
mis	380
muz	2100
oltin	120
rux	400
suv	4200
temir	450
cho'yan	500

Molyar massa (g/mol) / Молярная масса

Modda	M
argon (Ar)	40
azot ( $N_2$ )	28
geliy (He)	4
neon (Ne)	20
havo	29
suv ( $H_2O$ )	18
karbonad angidrid ( $CO_2$ )	44
mis (Cu)	64
alyuminiy (Al)	27
kislorod ( $O_2$ )	32
vodorod ( $H_2$ )	2

Boshqa kattaliklar

Kattalik	Qiymat
Muzning solishtirma erish issiqligi (0 °C)	$330\cdot10^{3}\ \text{J/kg}$
Suvning solishtirma bug'lanish issiqligi (100 °C)	$2{,}3\cdot10^{6}\ \text{J/kg}$
Benzinning yonish issiqligi	$46\cdot10^{6}\ \text{J/kg}$
Neftning yonish issiqligi	$44\cdot10^{6}\ \text{J/kg}$
Spirtning yonish issiqligi	$29\cdot10^{6}\ \text{J/kg}$
Tabiiy gazning yonish issiqligi	$44\cdot10^{6}\ \text{J/kg}$
Toshko'mirning yonish issiqligi	$29\cdot10^{6}\ \text{J/kg}$
Yog'ochning yonish issiqligi	$10\cdot10^{6}\ \text{J/kg}$

Sirt taranglik koeffitsiyenti (20 °C), $10^-3$ N/m

Modda	Qiymat
benzin	21
kerosin	24
suv	73
spirt	22
sovun eritmasi	40
simob	510

O'tkazgichlarning solishtirma qarshiligi (20 °C), $10^-8\ \Omega\cdot$m

Modda	Qiymat
mis	1,7
alyuminiy	2,8
volfram	5,5
temir	9,8
nikelin	40
nixrom	110

Nur sindirish ko'rsatkichi / Показатель преломления

Modda	n
suv	$4/3$
shisha	1,5
yoqut	1,76
olmos	2,42

Ayrim birliklar o'rtasidagi munosabat va normal sharoit

Munosabat	Qiymat
0 °C	$273\ \text{K}$
1 u	$1{,}66\cdot10^{-27}\ \text{kg}$
1 eV	$1{,}6\cdot10^{-19}\ \text{J}$
1 mm Hg	$133{,}3\ \text{Pa}$
Normal bosim	$10^{5}\ \text{Pa}$
Normal temperatura	$0\ ^\circ\text{C}$

Shartli belgilar / Условные обозначения

× ×— magnit induksiya chiziqlari o'quvchidan qog'oz tekisligiga tik yo'nalgan
• •— magnit induksiya chiziqlari qog'oz tekisligidan o'quvchiga tik yo'nalgan
⊕— o'tkazgichdagi tok o'quvchidan qog'oz tekisligiga tik yo'nalgan
⊙— o'tkazgichdagi tok qog'oz tekisligidan o'quvchiga tik yo'nalgan

Eslatma: bu formulalar yordam sifatida tavsiya qilinadi.

1,8 km/min tezlik necha m/s ga teng?

Bir nechta shkivlar aylanma harakatni bir-biriga uzatmoqda. Birinchi va ikkinchi shkivlar o'zaro bir o'qqa mahkamlangan, ikkinchi va uchinchi shkivlar esa o'zaro tasmali uzatma orqali bog'langan. Agar shkivlarning radiuslari

10R_1 = 2R_2 = 5R_3

munosabatda bo'lsa, birinchi va uchinchi shkiv chekka nuqtalarining markazga intilma tezlanishlari nisbatini (

a_1/a_3

) aniqlang.

Quyidagi birliklarning qaysi birlarini o'zaro taqqoslash mumkin?

1)

\frac{\text{km}}{\text{min}^2}

\frac{\text{dm}\cdot\text{kg}}{\text{h}}

\frac{\text{km}^2\cdot\text{kg}}{\text{h}^2}

\frac{\text{kg}\cdot\text{m}}{\text{h}}

Jismga to'rtta kuch rasmda ko'rsatilgandek ta'sir etmoqda. Ushbu kuchlarning teng ta'sir etuvchisini aniqlang.

Bir kuch

m_1

massali jismga 2 m/s

^2

tezlanish,

m_2

massali jismga 6 m/s

^2

tezlanish bera oladi. Shu kuch

m_1 - m_2

massali jismga qanday tezlanish (m/s

^2

) bera oladi?

m

massali

OA

sterjen rasmda ko'rsatilgandek muvozanatda turibdi. Bunda:

m = 2

kg,

OA = 1,5

m va

\sin\alpha = 0,8

F

kuchning

O

nuqtaga nisbatan kuch momentini (N

\cdot

m) aniqlang.

Massasi 3,6 kg bo'lgan yog'och bo'lagi yonganda qancha issiqlik miqdori (kW

\cdot

h) ajraladi?

Massasi 8 kg bo'lgan jism tik yuqoriga 30 m/s tezlik bilan otildi. Jismning maksimal potensial energiyasini (J) toping.

4 kg massali sharcha sharqqa 3 m/s tezlik bilan, 0,5 kg massali sharcha esa 10 m/s tezlik bilan janubga harakatlanib ketyapti. Sistema massa markazining tezligini (m/s) aniqlang.

10.

Zichliklari 4 marta farq qiluvchi 20 dm

^3

hajmli bir xil ikki sharcha rasmda ko'rsatilgandek kerosinda muvozanatda turibdi. Yuqoridagi jismning yarmi suvga botgan. Arqonning taranglik kuchini (N) toping.

11.

Chetki vaziyatdan tebranishni boshlagan mayatnikning tebranish amplitudasi 12 cm ga teng. Mayatnik ilk 0,5 s da amplitudaning yarmini bosib o'tdi. U keyingi 4,5 s da qancha masofa (cm) bosadi?

12.

1 mol kislorodning molyar massasini (g/mol) aniqlang.

13.

Ideal gaz

pV^2 = \text{const}

qonuniyat bo'yicha kengaymoqda. Bunda gazning temperaturasi qanday o'zgaradi?

14.

Hajmi 40 m

^3

bo'lgan xonadagi harorat 24

^\circ

C bo'lganda nisbiy namlik 80 % ni tashkil etdi. Xonadagi suv bug'i massasini (g) toping.

15.

Ideal issiqlik mashinasi isitkichining temperaturasi 127

^\circ

C, sovutkichniki esa 27

^\circ

C ga teng. Isitkich minutiga 600 g tabiiy gaz yoqsa, mashinaning quvvatini (kW) aniqlang.

16.

Vakuumda joylashgan nuqtaviy zaryadning o'zidan

r

masofada hosil qilgan maydon kuchlanganligi 8,82 V/m ga teng bo'lsa, uning kerosin ichida shu masofadagi maydon kuchlanganligi qancha (V/m) bo'ladi? Kerosin uchun dielektrik singdiruvchanlik 2,1 ga teng.

17.

Zaryadlari 4 nC va

-2

nC bo'lgan ikki nuqtaviy zaryad orasidagi masofa 10 cm ga teng. 4 nC zaryaddan qanday masofada (cm) elektr maydon kuchlanganligi nolga teng bo'ladi?

\sqrt{2}\approx1{,}41

18.

Sig'imi

C

bo'lgan zaryadlangan kondensator plastinkalari qarshiligi

R

bo'lgan o'tkazgich orqali tutashtirildi. Kondensator zaryadining 0,1 % i o'tkazgich orqali o'tishi uchun qancha vaqt kerak bo'ladi?

19.

Zaryadlangan sfera radiusi 2 marta ortsa, uning elektr maydon energiyasi qanday o'zgaradi?

20.

To'la zaryadi

q

bo'lgan

\ell

uzunlikdagi simda zaryadlarning tartibli harakat tezligi

v

ga teng bo'lsa, simdan oqayotgan tok kuchini toping.

21.

3 ta bir xil qarshilikni necha xil usulda ulash mumkin?

22.

Berilgan elektr zanjiridagi ampermetrning ko'rsatkichini (A) toping. Manbaning ichki qarshiligini inobatga olmang.

23.

Fazoda bir nechta tokli o'tkazgichlar biror A nuqtada sharqqa 0,6 T, janubga 0,2 T, pastga 0,9 T induksiyalar hosil qilmoqda. A nuqtadagi natijaviy induksiyani (T) aniqlang.

24.

Tomonlari 20 cm va 30 cm bo'lgan to'g'ri to'rtburchakli ramkaning maksimal aylantiruvchi momenti 240

\mu

\cdot

m ga, ramkadan oqayotgan tok kuchi esa 0,5 A ga teng. Magnit maydon induksiyasini (mT) aniqlang.

25.

Induktivligi 20 mH bo'lgan g'altakdan 12 A elektr toki oqmoqda. G'altakda hosil bo'layotgan magnit oqimni (mWb) aniqlang.

26.

Energiyasi 50 mJ bo'lgan kondensatorga g'altak ulanib elektromagnit tebranishlar konturi hosil qilindi. Tebranish konturining davri 12 ms bo'lsa, 28 ms vaqtdan keyin g'altakdagi energiyani (mJ) toping.

27.

Dielektrik singdiruvchanligi 2,5 va magnit singdiruvchanligi 1,6 bo'lgan muhitning absolyut nur sindirish ko'rsatkichini toping.

28.

Nur sindirish ko'rsatkichi 5/3 bo'lgan suyuqlik ichida 15 cm radiusli havo bo'shlig'i bor. Bo'shliqqa parallel nurlar dastasi tushurilsa, uning ichida ko'rinuvchi nurning radiusi qanday (cm) bo'ladi.

29.

1 mm da 250 ta shtrixi bor difraksion panjara orqali ekranda hosil qilinayotgan 4-tartibli maksimum

30^\circ

da ko'rinadi. Panjaraga tushayotgan to'lqinning uzunligini (nm) toping.

30.

Elektronning impulsi to'lqin uzunligi 490 nm bo'lgan fotonning impulsiga teng. Elektronning tezligini (m/s) aniqlang (

v \ll c

m_e = 9\cdot10^{-31}

kg.

31.

Vodorod atomi uchta foton nurladi. Nurlangan foton impulslarini taqqoslang.

32.

^{207}_{82}Pb

qo'rg'oshin yadrosidagi neytronlar sonini aniqlang.

Topshiriqlar (33-35) va javob variantlari (A-F) ni o'zaro moslashtiring.

33-35.

Stansiyadan 5 km masofaga mis sim orqali ikki liniyali elektr toki uzatilmoqda. Iste'molchiga yetib borayotgan quvvat 90 kW ga, stansiyadagi kuchlanish esa 4 kV ga teng. Liniyada kuchlanishning 10 % i isrof bo'ldi.

36.

Massasi 4 kg bo'lgan jism yerdan 80 m balandlikda tinch turibdi. U 1:4 nisbatda parchalangandan keyin, kichik bo'lak 120 m/s gorizontal tezlik oldi.

a) Ikkinchi bo'lakning maksimal kinetik energiyasini (kJ) toping.

b) Bo'laklarning yerga urilish nuqtalari orasidagi masofani (m) aniqlang.

37.

Suvli idishga ipga osilgan alyuminiy sharcha tushirildi. Idish rasmda ko'rsatilgandek gorizontal

a = 7,5

m/s

^2

tezlanish bilan harakatlana boshladi. Sharcha hajmi 6 dm

^3

ga teng.

a) Sharchaga ta'sir etayotgan arximed kuchini (N) aniqlang.

b) Ipning taranglik kuchini (N) toping.

38.

Silindr shaklidagi 200 g massali muz bo'lagi vertikal holatda suvda suzib yuribdi. Uning asos yuzasi 80 cm

^2

ga teng. Uni suvga 5 cm botirib qo'yib yuborildi.

\pi \approx 3

a) Muz bo'lagining kichik tebranishlar davri (s) topilsin.

b) Maksimal tezligi (m/s) topilsin.

39.

Massasi 5 kg bo'lgan geliy gazining hajmi 127

^\circ

C haroratda 2 m

^3

ga teng. Uning zichligi izobarik ravishda 2 kg/m

^3

gacha kamaydi.

a) Gazning oxirgi haroratini (K) toping.

b) Gazga berilgan issiqlik miqdorini (kJ) toping.

40.

Ideal issiqlik dvigateli isitkichining temperaturasi 800 K. Isitkichning bergan issiqlik miqdori 12 kJ ga, sovutgichning olgan issiqlik miqdori esa 3 kJ ga teng.

a) Sovutgichning temperaturasi (K) qancha?

b) Sovutgichning temperaturasini o'zgartirmasdan faqat isitgichning temperaturasi 2 marta orttirilsa, dvigatelning FIK necha marta ortadi?

41.

Tomoni 20 cm bo'lgan muntazam uchburchakning ikkita uchiga 8 nC va

-4

nC zaryadlar joylashtirilgan.

a) Uchburchakning uchinchi uchidagi umumiy potensialni (V) aniqlang.

b) Uchburchakning uchinchi uchiga 6 nC sinov zaryadi kiritilsa, shu zaryadni qarshisidagi tomon o'rtasiga ko'chirishda bajarilgan ishni (nJ) toping.

42.

O'zgaruvchan tok zanjirida aktiv qarshiligi 12

\Omega

ga, to'la qarshilik esa 18

\Omega

ga teng. Zanjirdagi kuchlanishning effektiv qiymati 27 V.

a) Quvvat koeffitsiyentini toping.

b) Zanjirdagi effektiv tok kuchini (A) toping.

43.

600 nm to'lqin uzunlikdagi monoxromatik yorug'lik difraksion panjaraga tik tushmoqda. Panjara doimiysi 3,5

\mu

m ga teng.

a) Ekranda hosil bo'layotgan eng katta tartibini aniqlang.

b) Ekrandagi maksimumlar sonini toping.

44.

Tinchlikdagi energiyasi 8 pJ bo'lgan zarra

0,6c

tezlik bilan harakatlanmoqda.

a) Zarrachaning kinetik energiyasini (pJ) toping.

b) Zarrachaning impulsini (kg

\cdot

m/s) toping.

45.

n

\alpha

va 7 ta

\beta^-

yemirilishdan so'ng elementning protonlar soni 9 taga kamaygan.

n

ni toping.

b) Elementning atom massasi qanchaga kamaygan?

Savol	A	B	C	D	E	F
33. Liniyadagi kuchlanish tushuvini (V) aniqlang.
34. Liniyada oqayotgan tok kuchini (A) aniqlang.
35. Mis simning massasini (kg) aniqlang.