Question

Shown below is the cathode ray tube experimental setup.The green glow as shown is due to which material?

• A. $ZnS$
• B. $ZnC{l}_2$
• C. $AgCl$
• D. $FeS{O}_4$

Answer 1

The correct option is A $ZnS$

In the cathode ray tube experiment, a hole was made to check the direction of flow of electrons. Behind the hole was a fluroscent ZnS screen which is responsible for confirming the same, which in this case, is the green glow.