Waktu paruh 29Cu65 adalah 128 hari. Jika semula disimpan 0,8 gram dan ternyata tersisa 0,1 gram unsur tersebut telah disimpan selama ....

fisika

Quiz
•
Biology
•
3rd Grade
•
Medium
Pekik Wicaksono
Used 1+ times
FREE Resource
21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
128 hari
256 hari
384 hari
640 hari
1280 hari
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Setelah disimpan selama 60 hari, 16 gram radioisotop masih bersisa 2 gram. Berapakah waktu paruh radioisotop tersebut?
10
20
30
40
50
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suatu isotop memiliki waktu paruh 10 menit. Berapakah jumlah isotop yang tersisa setelah 40 menit?
1/4
1/8
1/16
1/32
1/64
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
urutan jenis gelombang elektromagnetik dari frekuensi besar ke kecil adalah ....
gelombang radio, inframerah, cahaya tampak, sinar X
sinar gamma, ultraviolet, inframerah, gelombang mikro
sinar gamma, inframerah, ultraviolet, gelombang radio
gelombang mikro, cahaya tampak, ultraviolet, sinar X
gelombang mikro, cahaya tampak, inframerah, sinar X
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada bidang militer dimanfaatkan satelit untuk memotret permukaan bumi meskipun terhalang oleh kabut atau awan menggunakan sinar . . .
mikro
inframerah
radio
X
cahaya tampak
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Matahari merupakan sumber utama dari ….
gelombang radio
sinar ultraviolet
cahaya tampak
sinar inframerah
sinar gamma
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Salah satu pemanfaatan gelombang mikro adalah ....
terapi penyakit encok
membunuh sel kanker
mensterilkan alat-alat kedokteran
memasak makanan dengan lebih cepat
penghantar informasi pada transmitter radio
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