Which coherent sources produce fine interference?

Why two independent sources cannot produce sustained interfernce?

What are coherent sources of light? Why no interference pattern is observed when two coherent sources are very for apart?

Fill ups Two independent sources………………..produce interference.

Why should we have narrow sources to produce good interference fringes?

What are coherent sources of light?

What are coherent sources of light?

Define the term'coherent sources' which are required to produce interference pattern in Young's double slit experiment.

Which sources produce alternating current?