Cecil Moore wrote:
Remember, these are photonic
EM waves.

I'm gonna write that down.

You still didn't give me a word for that change in momentum.

In my opinion, when you have a change in momentum, you should rightly
refer to it as a change in momentum.

So, should momentum change? Or should we expect it to be conserved?

Walter Maxwell calls it "re-reflected". I would be satisfied
with "re-directed' or "momentum-reversed". What would you
like to name it?

I still like "Cecil's 4th Mechanism of Reflection" best.

While you are at it, you never did give me a word for watts
that are not power.

Ask again after you've come to understand the difference between a
unit of measurement and a defined physical quantity.

73, Jim AC6XG