@FizikaTermiz Bahodir Davlatov
@FizikaTermiz Bahodir Davlatov
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4. Matematik mayatnik uzunligi qanday bo‘lganda uning tebranish
davri 6,28 s ga teng bo‘ladi (m)? g=10 m/s
2
A)1,6 B)6,28 C)3,14 D
)10
5. Ipining uzunligi
l bo‘lgan matematik mayatnikning tebranish
davri T ga teng. Agar ipning
l/2 qismini kesib tashlab, qolgan
qismiga yana o‘sha
yuk osilsa, tebranish davri qanday bo‘ladi?
A)774 B)
T
2
C
)
2
T
D)2T/3
6. Matematik mayatnikning tebranish chastotasi qanday formula
bilan ifodalanishini ko‘rsating.
A
)
g
2
1
l
p
=
n
B)
l
g
2
1
p
=
n
C)
g
2
l
p
=
n
D)
l
g
2
p
=
n
7. Tebranish davri T bo‘lgan matematik mayatnikka tashqi kuch
ta’sir qilganda rezonans yuzaga kelishi uchun tashqi ta’sir chastotasi
ν nimaga teng bo‘lishi kerak bo‘ladi?
A)ν=2πT B)ν=T/2π C
)ν=1/T D)
T
2
1
p
=
n
8. Matematik mayatnik tebranish chastotasi nimalarga bog‘liq?
1)mayatnik massasiga; 2)tebranish amplitudasiga; 3)erkin tushish
tezlanishiga; 4)mayatnik uzunligiga
A
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