59. Prujinali mayatnik 1. Berilgan tenglamalar orasidan prujinali mayatnikning tebranish
davri ifodasini aniqlang.
A)
g
2
T
l
p
=
B) k
m
2
T
p
=
C)
LC
2
T
p
=
D)
m
k
2
T
p
=
2. Vaznsizlik sharoitida quyidagi qaysi asboblardan foydalanish
mumkin? 1)pallali tarozi; 2)prujinali tarozi; 3)mayatnikli soat;
4)prujinali soat; 5)areometr; 6)simobli termometr
A)4 B)1; 2; 6 C)4; 6 D)5; 3
3. Tebranish davri T bo‘lgan prujinali mayatnikka osilgan yukning
massasi n marta oshirilsa, uning tebranish davri qanday bo‘ladi?
A)nT B)n
2
T C) T
n
D)
n
T
4. Prujinaga osilgan yukning tebranish davri T. Agar yukning
massasi 30 g ortsa, davri 2 marta ortadi. Jismning dastlabki massasi
qancha (g)?
A)80 B)60 C)40 D)10
5. Prujina o‘ziga osilgan yuk ta’sirida 4 mm ga uzaydi. Bunday
mayatnikning tebranish chastotasini aniqlang (Hz).
A)16 B)14 C)8 D)12
6. Bikrligi 25 N/m, yukining massasi 10 g bo‘lgan prujinali
mayatnikning tebranish chastotasini toping (Hz).
A)8 B)10 C)16 D)12
7. Bikrligi 100 N/m bo‘lgan prujinaga qanday massali yuk
osilganda, uning tebranish chastotasi 5 Hz bo‘ladi (g)?
A)200 B)25 C)100 D)50
8. Bikrligi 10 N/m bo‘lgan prujinaga qancha (kg) yuk osilsa,
tebranish davri 1 s bo‘lgan mayatnik hosil bo‘ladi?
A)5 B)2,5 C)0,25 D)0,025
9. Garmonik tebranish davri 0,1 s bo‘lgan prujinali mayatnik o‘z
yuki ta’sirida tebranmayotganda, qanchaga cho‘ziladi (mm)?
A)4,5 B)3,5 C)2,5 D)1,5
10. Bikrligi 250 N/m bo‘lgan prujinaga osilgan yuk 8 s da 10 marta
tebranmoqda. Yukning massasi necha kilogamm? π
2
=10
A)2 B)4 C)10 D)6
11. Bikrligi 150 N/m bo‘lgan prujinaga osilgan yuk 2 s da 10 marta
tebrandi. Yukning massasini toping (kg).
A)0,24 B)0,4 C)0,15 D)0,25
12. 200 N/m bikrlikdagi prujinaga osilgan yuk 8 s da 10 marta
tebrandi. Yukning massasini aniqlang (kg).
A)2,5 B)1,6 C)4 D)3,2
13. Bikrligi 625 N/m bo‘lgan prujinaga osilganda 4 s da 5 marta
bo‘ylama tebranadigan yukning massasini hisoblang (kg).
A