First Test Topic


#1

Please follow this format when you are posting your question:

Level: ‘O’ Level
Subject: Physics/Chemistry/Maths
Problem:
Attempted Solution:
Additional information:

NOTE: This is a test topic. Please create a new topic for your question! :slight_smile:


#2

Please follow this format when you are posting your question:

Level: ‘O’ Level
Subject: Physics
Problem: What happen when two spherical wave interfere?