Recent content by cantdophysics

How much force (in Newtons) is exerted on a mirror when a 12.0W laser beam of red light (675 nm) strikes the mirror normal to its surface? (Assume no light is absorbed) How how how how? kthx

I don't even know where to start with this question! Two coherent sources are traveling as shown below. Find the minimum thickness of the glass (n=1.51) for the waves to be out of phase at the screen