Question

3. What type of interference is happening when light waves add together to become brighter? Which letter on the diagram shows this phenomenon?

Answer 1

Step-by-step explanation:

Constructive interference is happening when light waves add together to become brighter .

By observing the diagram we can say that

• Only B is showing this phenomenon

Answer 2

B only

Step-by-step explanation:

The previous answer is correct that constructive interference is happening when light waves add together to become brighter. But only letter B shows constructive interference; A is too close to one of the sources for interference to occur.