کاربن ڈیٹنگ _____ کے لئے استعمال کی جاتی ہے؟
-
A. Finding the age
-
B. Hardening the diamond
-
C. Melting steel
-
D. Collecting carbon
Explanation
- Carbon dating is used to estimate the age of fossils.
- Those that are less than 60,000 years old.
- It is composed of organic materials like wood or leather.
-
A. 2.5gm
-
B. None of these
-
C. 20gm
-
D. 5gm
Explanation
After 1 half-life (20 days), the amount left is 40/2 = 20gm.After 2 half-lives (40 days), the amount left is 20/2 = 10gm.
After 3 half-lives (60 days), the amount left is 10/2 = 5gm.
After 4 half-lives (80 days), the amount left is 5/2 = 2.5gm.
✅ Correct: 0 |
❌ Wrong: 0 |
📊 Total Attempted: 0
iamge
