Question

PLEASE HELP! Waves:
In constructive interference, two waves moving through the same medium must be
Choose one answer.
a.
in phase with each other

b.
cancelled out by each other

c.
blocked by each other

d.
out of phase with each other

Answer 1

Also:
In destructive interference, two waves moving through the same medium
Choose one answer.
a.
add their effects to each other

b.
are in phase with each other

c.
cancel out each other

d.
amplify each other

Answer 2

constructive = in phase

destructive = out of phase = cancel out

Answer 3

Thanks!!!!!!!!!!!!!!

Answer 4

no problem