### Waves - Result Question 27

#### 27. Which of the following equations represent a wave?

[1994]

(a) $y=A \sin \omega t$

(b) $y=A \cos k x$

(c) $y=A \sin (a t-b x+c)$

(d) $y=A(\omega t-k x)$

## Show Answer

#### Answer:

Correct Answer: 27. (c)

Solution:

- (c) $y=A \sin (a t-b x+c)$ represents a wave, where a may correspond to $\omega$ and $b$ may correspond to $K$.