1. Question 11 Not yet answered An electron and a proton enter a bubble chamber and produce the
tracks shown to the right. Marked out of 1 Particles enter from here pFlag question I Which
statement best explains tracks W and Y? Select one: 0 a. Both tracks are electrons O b. Both
tracks are protons ° c. Track w is the proton and Y is the electron O d. Track W is the electron
and Y is the proton
Solution
Option c is the correct answer
Bubble Chamber
This consists of a chamber containing liquid hydrogen. The pressure is so
low that the hydrogen is almost on the point of vaporizing. When an ionizing
radiation enters the chamber it causes the hydrogen to ionize, which triggers
vaporization and a trail of bubbles shows the track of the particle.