Question

When the crest of one wave aligns with the trough of another wave the result is

A:Constructive interference B:Destructive interference

Answer 1

@yrelhan4

Answer 2

What do you think?

Answer 3

a :)

Answer 4

why?

Answer 5

i mean why a? why not b?

Answer 6

oh true becouse its destructive sorry im like half asleep :( im so tired

Answer 7

are you sure about it?

Answer 8

idk i stink in physics thats y i need someone to explain....

Answer 9

i hope you know what a crest and a trough is right?

Answer 10

yes i do

Answer 11

so imagine it like this... when a crest and a crest align themselves.. the resultant crest will get bigger in size. and consequently here a trough and another trough will coincide, so the resultant trough will get bigger.. this is called constructive interference.. get it?

Answer 12

yes...

Answer 13

similarly if a crest and a trough coincide, the resultant would be 0.. this is called destructive interference.. yeah?

Answer 14

yea

Answer 15

thats it. you have your answer..
and have you learned about phase difference yet?

Answer 16

no.

Answer 17

ok. so your answer is destructive interference.

Answer 18

i know ^.^