Q. The equation $y = a\sin{2\pi\left( \frac{t}{T} - \frac{x}{\lambda} \right)}$, where the symbols carry the usual meaning and a, T and λ ate positive, represents a wave of
A) Amplitude 2a
B) Period T/λ
C) Speed xλ
D) Speed (λ/T)
Explanation
(d) $speed\ v = \frac{\omega}{k} = \frac{2\pi \times \lambda}{T \times 2\pi} = \frac{\lambda}{T}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.