Rankers Physics

Waves and its Characteristics: Practice Problem & Solution

Which one of the following represents a wave? (1994)
$y = A \sin(\omega t - kx)$
$y = A \cos(at - bx + c)$
$y = A \sin kx$
$y = A \sin \omega t$

Solution Explained:

To solve this problem, we apply the core principles of Waves and its Characteristics. Understanding the underlying formula is key to arriving at the correct answer below:

The equation $y = A \sin(\omega t - kx)$ correctly relates spatial and temporal variations indicating a progressive wave.

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