147046
A .P.R IM K EV IC H
FIZIKADAN
MASALALAR
TOTLAMI
U m u m t a ’lim m a k ta b la r i u c h u n
3 - n a s h r i
« 0 ‘Q IT U V C H I » N A S H R IY O T -M A T B A A I J O D IY U Y I
T O S H K E N T — 2013
UO‘K: 53(07)
КВК |2.3уа721
ф ^ ^
Rimkevich А. P.
22.3я721
F iz ik ad an m asala la r t o ‘plam i: U m u m ta ’lim
R58
m aktablari uchun. /А . P. R im kevich. — 3-nashri.
- Т.: « 0 ‘qituvchi» N M I U , 2013. - 208 b.
IS B N 978-9943-02-605-6
M a z k u r o ‘q u v q o ‘l l a n m a m a k t a b o ‘q u v c h i l a r i v a
o ‘q it u v c h il a r u c h u n q o ‘s h i m c h a f o y d a la n is h g a m o ‘lja l-
la n g a n b o ‘lib , u n d a fiz ik a k u r s in in g h a m m a b o N im la ri,
y a ’n i « M e x a n ik a » , « M o l e k u la r fiz ik a » , « E le k tr o d in a m i-
k a » , « T e b r a n is h la r v a to M q in la r» , « O p tik a » , « A to m fiz i-
k a si» , « A to m y a d ro s i fiz ik a s i» g a d o ir m a s a la l a r b e r ilg a n .
U O ‘K: 53(07)
K B K 22.3ya721
A lishei Naveiy I
! 0 1 д а
aom iddgi
O zbekision MK.
IS B N 9 7 8 - 9 9 4 3 - 0 2 - 6 0 5 - 6
© 0 ‘z b e k tilig a ta rjim a .
« 0 ‘q itu v c h i» n ash riy o ti,
o ‘zg arish lar b ila n , 1987- y.
© « 0 ‘q itu v ch i» N M I U , 2 0 1 1 -y .
SO ‘ZBOSHI
M ak tab fizika kursini o ‘rganish - fizik h o d isalar va q o n u -
n iy a tla m i tu sh u n ib g in a q o lm ay , balki u la m i am a ld a tatb iq
qila bilish h a m d em ak d ir. M u ayyan m asalani hal qilish u c h u n
fizikaning u m u m iy q o id alarin i h a r q a n d a y q o ‘Uanish fizik
m asala y echish d em ak d ir.
M asalani yechishga kirishishdan a w a l m asalaning m a ’n o -
sini tu sh u n ib olish va u n in g aso sid a q an d a y fizik h o d isalar
va q o n u n iy a tla r y o tg an in i, u n d a tavsiflangan ja ra y o n la rn in g
qaysilari asosiy ek a n in i va qaysilarini hisobga olm aslik m u m -
kinligini aniqlab olish lozim . M asalani yechish m u m k in b o ‘lsin
u c h u n b iz s o d d a la s h tiru v c h i q a n d a y fa ra z la r k iritish im iz
lozim ligini bilish im iz kerak. M asalan , jism n in g b iro r b a la n d -
likdan tu sh ish vaq tin i hiso b lash d a quyidagi so d d alash tirish lar
qilinadi: jism n i m o d d iy n u q ta d eb hiso b lab , erk in tushish
tezlan ish i o ‘zgarm as d eb qabul q ilin a d i, h av o n in g qarshiligi
hisobga o lin m a y d i.
K a ttalik lar va fizik d o im iy lik la m in g jadval q iy m atla rid an
fo y d a la n ib , u la m in g q iy m atla rin i yech ilay o tg an m asalaning
b e rilg a n s h a rtla ri b ila n b e lg ila n a d ig a n a n iq lik d a ra ja sid a
yaxlitlash lozim .
M ashq u c h u n y ec h ilad ig an m asala la rd a hiso b lash larn i
soddalashtirish m aqsadida erkin tushish tezlanishini 10 m /s 2,
n o r m a l a tm o s f e r a b o s im in i 100 k P a , A v o g a d ro s o n in i
6 • 1023 m o ‘1"1, y o ru g ‘lik tezlig in i 3 - 108 m /s , e le k tro n n in g
zaryadini 1,6 • 10-19 С va h o k az o qabul qilish m u m k in .
M asalalarn i y e c h ish d a m ik ro k alk u lato rd an foydalanilgan
m a ’qul. A gar m ik ro k a lk u la to r b o ‘lm asa, b erilg an larn i ikki-
u ch q iy m atli ra q am larg ac h a yaxlitlash lozim .
H isoblashlarga kirishishdan a w a l, o d a td a , berilgan m a ’lu-
m o tla rn i b itta s is te m a d a ifo d a la sh lo z im . K o ‘p h o lla rd a
m asalalarni X alq aro b irlik la r sistem asi (S I) d a y echish tavsiya
q ilin ad i. A gar m asala b a ’zi k attalik larg a n isb atan b ir jinsli
te n g la m a b o ‘y ic h a y e c h ilsa , u n d a b u k a tta lik la rn i q ab u l
qilin g an birlik lar sistem asiga o ‘tk azish sh art em as.
3
Do'stlaringiz bilan baham: |