Question Detail

PHY 102 Test Compilation PHY 102 28 Objective Question
Take CBT

Question

A radioactive source has a half-life of 1 minute. At time t=0 it is placed near a detector, and the counting rate is observed to be 2000 counts/s. Find the decay constant.
Options
A 1.66 x 10-2 s-1
B 1.06 x 10-2 s-1
C 1.26 x 10-2 s-1
D 1.16 x 10-2 s-1
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

lambda=ln2/T_half=0.6931/60s=1.16e-2 s-1.

Hint

lambda=ln2/T_half=0.6931/60s=1.16e-2 s-1.

Question Info

Course: PHY 102
Topic: Test Compilation PHY 102 28
Type: Objective
Difficulty: Not specified
Question 1626 of 1819
Previous Course Details Next