The equation of a progressive wave is y = 2 sin(3x - 4t). What is its wave number?
Q1. The equation of a progressive wave is y = 2 sin(3x - 4t). What is its wave number?
Answer: 3
Explanation: The wave equation is in the form y = A sin(kx - ωt), where k is the wave number. Here, k = 3. Option A is incorrect as it misinterprets the wave number.