Wave Mechanics Question 707

Question: Which two of the given transverse waves will give stationary waves when get superimposed [RPET 1997; MP PET 1993] $ z _{1}=a\cos (kx-\omega ,t) $ ….. $ z _{2}=a\cos (kx+\omega ,t) $ ….. $ z _{3}=a\cos (ky-\omega ,t) $ …..

Options:

A) A and B

B) A and C

C) B and C

D) Any two

Show Answer

Answer:

Correct Answer: A

Solution:

Waves A and B satisfied the conditions required for a standing wave.