What is the largest wavelength that will give constructive interference at an observation point 161 m from one source and 335 m from the other source

Aform of energy that is reflected or emitted from objects in the form of electrical and magnetic waves that can travel through space. there are many forms of  electromagnetic  energy including gamma rays, x rays, ultraviolet radiation, visible light, infrared radiation, microwaves and radio waves.

Your answer is 1.5 hope i  

Answerapply an acl that has all deny ace statement;