Any progressive wave equationin differential form is :

Options

A. `(1)/(omega^(2)) (partial^(2)y)/(partialt^(2)) = (1)/(k^(2)) (partial^(2)y)/(partialx^(2))`
B. `(1)/(omega) (partialy)/(partialt) = -(1)/(k)(partialy)/(partialx)`
C. `(1)/(omega^(2))(partial^(2)y)/(partialt^(2)) = -(1)/(k^(2)) (partial^(2)y)/(partialx^(2))`
D. `(1)/(omega)(partialy)/(partialt) = (1)/(k)(partialy)/(partialx)`

Answer

A, B

Explanation

By definition as explained in article 6.2.1, here options (A) and (B) are correct.