Join Sarthaks eConnect Today - Largest Online Education Community!
0 votes
10 views
asked ago in Physics by (67.6k points)

Using a nuclear counter the count rate of emitted particles from a radioactive source is measured. At t = 0 it was 1600 counts per second and t = 8 seconds it was 100 counts per second. The count rate observed, as counts per second, at t = 6 seconds is close to : 

(1) 150 

(2) 360 

(3) 200 

(4) 400

1 Answer

+1 vote
answered ago by (27.8k points)
selected ago by
 
Best answer

Correct option: (3) 200

Explanation:

till t = 6 sec. 3 half lives must have been completed. So count rate = 1600/23 = 200

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

One Thought Forever

“There is a close connection between getting up in the world and getting up in the morning.“
– Anon
~~~*****~~~

Categories

...