Light waves spreading from two sources produce steady interference only if they have:
A
congruence
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
coherence
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
same intensity
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
same amplitude
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is C coherence Interference refers to the interaction of waves that are correlated of coherent with each other. Sustained interference takes place between waves which are coherent.