Question

The equation of stationary wave is given as $y=2A\sin(\frac{2\pi}{\lambda}\cdot nt) \cos (\frac{2\pi}{\lambda}\cdot x)$, then which of the following is not correct.

• A. Dimension of x is [L]
• B. Dimension of n is [LT-1]
• C. Dimension of $\frac{n}{\lambda}$ is [T]
• D. Dimension of nt is [L]

Answer 1

Answer: (C)

Dimension of $\frac{n}{\lambda}$ is [T]

Answer 2

The correct answer is option (C) : Dimension of $\frac{n}{\lambda}$ is [T]