Question

Do the Lasers produce the Coherent light ?

Answer 1

Two beams of light are coherent when the phase difference between their waves is constant.

The Laser light has the following properties:

$\left(1\right)$ Laser light is coherent, directional, and monochromatic.

$\left(2\right)$ Laser light is monochromatic which means that it is of a single wavelength and color.

$\left(3\right)$Laser light is highly directional and is emitted as a relatively narrow beam in a specific direction.

Therefore, Lasers produce coherent light.