Physics
NULL
Medium
Question
The curie, a unit of radioactivity, is defined as_________________?
A
3.74 x 109 disintegration per sec
B
3.70 x 1010 disintegration per sec
✓ Official correct answer
C
3.55 x 1010 disintegration per sec
D
3.60 x 1010 disintegration per sec
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
3.74 x 109 disintegration per sec
No member explanations yet for this option.
B
3.70 x 1010 disintegration per sec
No member explanations yet for this option.
C
3.55 x 1010 disintegration per sec
No member explanations yet for this option.
D
3.60 x 1010 disintegration per sec
No member explanations yet for this option.
Explanation
One curie (Ci) is defined as 3.70 × 10¹⁰ disintegrations per second, originally based on the activity of 1 gram of radium-226.
So the correct answer is 3.70 x 10^10 disintegration per sec.
Related Questions
Q
The waves which are used for line of sight (LOS) communication are called:
Medium
· Physics
Q
A potential difference is applied across the ends of a wire. If the potential di...
Medium
· Physics
Q
Relation between linear velocity and angular velocity:
Medium
· Physics
Q
If the axis of rotation passes through the body and the body moves around itself...
Medium
· Physics