A classical point particle moves back and forth with constant speed between two walls at x = 0 and x = 10 cm.What is the probability of finding the particle between x = 4.0 cm and x = 5 cm?
A)0.01
B)0.04
C)0.07
D)0.10
E)0.14

Question

Quizplus · Accepted Answer

The probability of finding a classical particle in a certain region is proportional to the time it spends in that region. Since the particle moves with constant speed, the probability is directly proportional to the length of the region compared to the total length of its path. The region of interest is 1 cm long (from 4.0 cm to 5.0 cm), and the total path length between the walls is 10 cm. Therefore, the probability is $1 cm / 10 cm = 0.10$.

A Classical Point Particle Moves Back and Forth with Constant