First slide
Photo Electric Effect
Question

In a photo electric experiment when yellow light is used stopping potential is found to be zero. If the yellow light is replaced by blue light, then stopping potential becomes V0. If red light is used in the same experiment the stopping potential would be 

Easy
Solution

Energy of individual photon of red light is less than that of yellow light. So emission of photo electron will not take place. 

Get Instant Solutions
When in doubt download our app. Now available Google Play Store- Doubts App
Download Now
Doubts App